24.04: Linux 6.12 #343
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commit 18b2093 upstream. While adding outer irqsave/restore locking, 0e7ffff ("scx: Fix raciness in scx_ops_bypass()") forgot to convert an inner rq_unlock_irqrestore() to rq_unlock() which could re-enable IRQ prematurely leading to the following warning: raw_local_irq_restore() called with IRQs enabled WARNING: CPU: 1 PID: 96 at kernel/locking/irqflag-debug.c:10 warn_bogus_irq_restore+0x30/0x40 ... Sched_ext: create_dsq (enabling) pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : warn_bogus_irq_restore+0x30/0x40 lr : warn_bogus_irq_restore+0x30/0x40 ... Call trace: warn_bogus_irq_restore+0x30/0x40 (P) warn_bogus_irq_restore+0x30/0x40 (L) scx_ops_bypass+0x224/0x3b8 scx_ops_enable.isra.0+0x2c8/0xaa8 bpf_scx_reg+0x18/0x30 ... irq event stamp: 33739 hardirqs last enabled at (33739): [<ffff8000800b699c>] scx_ops_bypass+0x174/0x3b8 hardirqs last disabled at (33738): [<ffff800080d48ad4>] _raw_spin_lock_irqsave+0xb4/0xd8 Drop the stray _irqrestore(). Signed-off-by: Tejun Heo <[email protected]> Reported-by: Ihor Solodrai <[email protected]> Link: http://lkml.kernel.org/r/qC39k3UsonrBYD_SmuxHnZIQLsuuccoCrkiqb_BT7DvH945A1_LZwE4g-5Pu9FcCtqZt4lY1HhIPi0homRuNWxkgo1rgP3bkxa0donw8kV4=@pm.me Fixes: 0e7ffff ("scx: Fix raciness in scx_ops_bypass()") Cc: [email protected] # v6.12 Signed-off-by: Greg Kroah-Hartman <[email protected]>
commit d0257e0 upstream. In the expression "cmd.wqe_size * cmd.wr_count", both variables are u32 values that come from the user so the multiplication can lead to integer wrapping. Then we pass the result to uverbs_request_next_ptr() which also could potentially wrap. The "cmd.sge_count * sizeof(struct ib_uverbs_sge)" multiplication can also overflow on 32bit systems although it's fine on 64bit systems. This patch does two things. First, I've re-arranged the condition in uverbs_request_next_ptr() so that the use controlled variable "len" is on one side of the comparison by itself without any math. Then I've modified all the callers to use size_mul() for the multiplications. Fixes: 67cdb40 ("[IB] uverbs: Implement more commands") Cc: [email protected] Signed-off-by: Dan Carpenter <[email protected]> Link: https://patch.msgid.link/[email protected] Signed-off-by: Leon Romanovsky <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
commit a37eecb upstream. If a device uses MCP23xxx IO expander to receive IRQs, the following bug can happen: BUG: sleeping function called from invalid context at kernel/locking/mutex.c:283 in_atomic(): 1, irqs_disabled(): 1, non_block: 0, ... preempt_count: 1, expected: 0 ... Call Trace: ... __might_resched+0x104/0x10e __might_sleep+0x3e/0x62 mutex_lock+0x20/0x4c regmap_lock_mutex+0x10/0x18 regmap_update_bits_base+0x2c/0x66 mcp23s08_irq_set_type+0x1ae/0x1d6 __irq_set_trigger+0x56/0x172 __setup_irq+0x1e6/0x646 request_threaded_irq+0xb6/0x160 ... We observed the problem while experimenting with a touchscreen driver which used MCP23017 IO expander (I2C). The regmap in the pinctrl-mcp23s08 driver uses a mutex for protection from concurrent accesses, which is the default for regmaps without .fast_io, .disable_locking, etc. mcp23s08_irq_set_type() calls regmap_update_bits_base(), and the latter locks the mutex. However, __setup_irq() locks desc->lock spinlock before calling these functions. As a result, the system tries to lock the mutex whole holding the spinlock. It seems, the internal regmap locks are not needed in this driver at all. mcp->lock seems to protect the regmap from concurrent accesses already, except, probably, in mcp_pinconf_get/set. mcp23s08_irq_set_type() and mcp23s08_irq_mask/unmask() are called under chip_bus_lock(), which calls mcp23s08_irq_bus_lock(). The latter takes mcp->lock and enables regmap caching, so that the potentially slow I2C accesses are deferred until chip_bus_unlock(). The accesses to the regmap from mcp23s08_probe_one() do not need additional locking. In all remaining places where the regmap is accessed, except mcp_pinconf_get/set(), the driver already takes mcp->lock. This patch adds locking in mcp_pinconf_get/set() and disables internal locking in the regmap config. Among other things, it fixes the sleeping in atomic context described above. Fixes: 8f38910 ("pinctrl: mcp23s08: switch to regmap caching") Cc: [email protected] Signed-off-by: Evgenii Shatokhin <[email protected]> Link: https://lore.kernel.org/[email protected] Signed-off-by: Linus Walleij <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
…EM_RECLAIM worker commit de35994 upstream. After commit 746ae46 ("drm/sched: Mark scheduler work queues with WQ_MEM_RECLAIM") amdgpu started seeing the following warning: [ ] workqueue: WQ_MEM_RECLAIM sdma0:drm_sched_run_job_work [gpu_sched] is flushing !WQ_MEM_RECLAIM events:amdgpu_device_delay_enable_gfx_off [amdgpu] ... [ ] Workqueue: sdma0 drm_sched_run_job_work [gpu_sched] ... [ ] Call Trace: [ ] <TASK> ... [ ] ? check_flush_dependency+0xf5/0x110 ... [ ] cancel_delayed_work_sync+0x6e/0x80 [ ] amdgpu_gfx_off_ctrl+0xab/0x140 [amdgpu] [ ] amdgpu_ring_alloc+0x40/0x50 [amdgpu] [ ] amdgpu_ib_schedule+0xf4/0x810 [amdgpu] [ ] ? drm_sched_run_job_work+0x22c/0x430 [gpu_sched] [ ] amdgpu_job_run+0xaa/0x1f0 [amdgpu] [ ] drm_sched_run_job_work+0x257/0x430 [gpu_sched] [ ] process_one_work+0x217/0x720 ... [ ] </TASK> The intent of the verifcation done in check_flush_depedency is to ensure forward progress during memory reclaim, by flagging cases when either a memory reclaim process, or a memory reclaim work item is flushed from a context not marked as memory reclaim safe. This is correct when flushing, but when called from the cancel(_delayed)_work_sync() paths it is a false positive because work is either already running, or will not be running at all. Therefore cancelling it is safe and we can relax the warning criteria by letting the helper know of the calling context. Signed-off-by: Tvrtko Ursulin <[email protected]> Fixes: fca839c ("workqueue: warn if memory reclaim tries to flush !WQ_MEM_RECLAIM workqueue") References: 746ae46 ("drm/sched: Mark scheduler work queues with WQ_MEM_RECLAIM") Cc: Tejun Heo <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Lai Jiangshan <[email protected]> Cc: Alex Deucher <[email protected]> Cc: Christian König <[email protected] Cc: Matthew Brost <[email protected]> Cc: <[email protected]> # v4.5+ Signed-off-by: Tejun Heo <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
commit 03c8d0a upstream. A Marvell 88E8075 ethernet controller has this device ID instead of 11ab:4370 and works fine with the sky2 driver. Signed-off-by: Pascal Hambourg <[email protected]> Cc: [email protected] Link: https://patch.msgid.link/[email protected] Signed-off-by: Jakub Kicinski <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
commit 35bf430 upstream. struct bpf_iter_scx_dsq *it maybe not initialized. If we didn't call scx_bpf_dsq_move_set_vtime and scx_bpf_dsq_move_set_slice before scx_bpf_dsq_move, it would cause unexpected behaviors: 1. Assign a huge slice into p->scx.slice 2. Assign a invalid vtime into p->scx.dsq_vtime Signed-off-by: Henry Huang <[email protected]> Fixes: 6462dd5 ("sched_ext: Compact struct bpf_iter_scx_dsq_kern") Cc: [email protected] # v6.12 Signed-off-by: Tejun Heo <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
commit 4e86729 upstream. While by default max_autoclose equals to INT_MAX / HZ, one may set net.sctp.max_autoclose to UINT_MAX. There is code in sctp_association_init() that can consequently trigger overflow. Cc: [email protected] Fixes: 9f70f46 ("sctp: properly latch and use autoclose value from sock to association") Signed-off-by: Nikolay Kuratov <[email protected]> Acked-by: Xin Long <[email protected]> Link: https://patch.msgid.link/[email protected] Signed-off-by: Jakub Kicinski <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
commit 38fc96a upstream. The io-wq path can downgrade a multishot request to oneshot mode, however io_read_mshot() doesn't handle that and would still post multiple CQEs. That's not allowed, because io_req_post_cqe() requires stricter context requirements. The described can only happen with pollable files that don't support FMODE_NOWAIT, which is an odd combination, so if even allowed it should be fairly rare. Cc: [email protected] Reported-by: chase xd <[email protected]> Fixes: bee1d5b ("io_uring: disable io-wq execution of multishot NOWAIT requests") Signed-off-by: Pavel Begunkov <[email protected]> Link: https://lore.kernel.org/r/c5c8c4a50a882fd581257b81bf52eee260ac29fd.1735407848.git.asml.silence@gmail.com Signed-off-by: Jens Axboe <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
commit 79d67c4 upstream. As per [1] and [2], ADV7535/7533 supports only 2-, 3-, or 4-lane. Drop unsupported 1-lane. [1] https://www.analog.com/media/en/technical-documentation/data-sheets/ADV7535.pdf [2] https://www.analog.com/media/en/technical-documentation/data-sheets/ADV7533.pdf Fixes: 1e4d58c ("drm/bridge: adv7533: Create a MIPI DSI device") Reported-by: Hien Huynh <[email protected]> Cc: [email protected] Reviewed-by: Laurent Pinchart <[email protected]> Reviewed-by: Adam Ford <[email protected]> Signed-off-by: Biju Das <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected] Signed-off-by: Dmitry Baryshkov <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
commit ee8f9ed upstream. As per [1] and [2], ADV7535/7533 supports only 2-, 3-, or 4-lane. Drop unsupported 1-lane from bindings. [1] https://www.analog.com/media/en/technical-documentation/data-sheets/ADV7535.pdf [2] https://www.analog.com/media/en/technical-documentation/data-sheets/ADV7533.pdf Fixes: 1e4d58c ("drm/bridge: adv7533: Create a MIPI DSI device") Cc: [email protected] Acked-by: Krzysztof Kozlowski <[email protected]> Reviewed-by: Geert Uytterhoeven <[email protected]> Reviewed-by: Laurent Pinchart <[email protected]> Signed-off-by: Biju Das <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected] Signed-off-by: Dmitry Baryshkov <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
commit 81adbd3 upstream. The host_node pointer was assigned and freed in adv7533_parse_dt(), and later, adv7533_attach_dsi() uses the same. Fix this use-after-free issue by dropping of_node_put() in adv7533_parse_dt() and calling of_node_put() in error path of probe() and also in the remove(). Fixes: 1e4d58c ("drm/bridge: adv7533: Create a MIPI DSI device") Cc: [email protected] Reviewed-by: Laurent Pinchart <[email protected]> Signed-off-by: Biju Das <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected] Signed-off-by: Dmitry Baryshkov <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
commit cc0c53f upstream. Both struct cfg80211_wowlan_nd_match and struct cfg80211_wowlan_nd_info pre-allocate space for channels and matches, but then may end up using fewer that the full allocation. Shrink the associated counter (n_channels and n_matches) after counting the results. This avoids compile-time (and run-time) warnings from __counted_by. (The counter member needs to be updated _before_ accessing the array index.) Seen with coming GCC 15: drivers/net/wireless/intel/iwlwifi/mvm/d3.c: In function 'iwl_mvm_query_set_freqs': drivers/net/wireless/intel/iwlwifi/mvm/d3.c:2877:66: warning: operation on 'match->n_channels' may be undefined [-Wsequence-point] 2877 | match->channels[match->n_channels++] = | ~~~~~~~~~~~~~~~~~^~ drivers/net/wireless/intel/iwlwifi/mvm/d3.c:2885:66: warning: operation on 'match->n_channels' may be undefined [-Wsequence-point] 2885 | match->channels[match->n_channels++] = | ~~~~~~~~~~~~~~~~~^~ drivers/net/wireless/intel/iwlwifi/mvm/d3.c: In function 'iwl_mvm_query_netdetect_reasons': drivers/net/wireless/intel/iwlwifi/mvm/d3.c:2982:58: warning: operation on 'net_detect->n_matches' may be undefined [-Wsequence-point] 2982 | net_detect->matches[net_detect->n_matches++] = match; | ~~~~~~~~~~~~~~~~~~~~~^~ Cc: [email protected] Fixes: aa4ec06 ("wifi: cfg80211: use __counted_by where appropriate") Signed-off-by: Kees Cook <[email protected]> Reviewed-by: Gustavo A. R. Silva <[email protected]> Link: https://patch.msgid.link/[email protected] Signed-off-by: Johannes Berg <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
commit d654740 upstream. In __ftrace_return_to_handler(), a loop iterates over the fgraph_array[] elements, which are fgraph_ops. The loop checks if an element is a fgraph_stub to prevent using a fgraph_stub afterward. However, if the compiler reloads fgraph_array[] after this check, it might race with an update to fgraph_array[] that introduces a fgraph_stub. This could result in the stub being processed, but the stub contains a null "func_hash" field, leading to a NULL pointer dereference. To ensure that the gops compared against the fgraph_stub matches the gops processed later, add a READ_ONCE(). A similar patch appears in commit 63a8dfb ("function_graph: Add READ_ONCE() when accessing fgraph_array[]"). Cc: [email protected] Fixes: 37238ab ("ftrace/function_graph: Pass fgraph_ops to function graph callbacks") Link: https://lore.kernel.org/[email protected] Signed-off-by: Zilin Guan <[email protected]> Signed-off-by: Steven Rostedt (Google) <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
…ceive commit 4a4d38a upstream. The Host Port (i.e. CPU facing port) of CPSW receives traffic from Linux via TX DMA Channels which are Hardware Queues consisting of traffic categorized according to their priority. The Host Port is configured to dequeue traffic from these Hardware Queues on the basis of priority i.e. as long as traffic exists on a Hardware Queue of a higher priority, the traffic on Hardware Queues of lower priority isn't dequeued. An alternate operation is also supported wherein traffic can be dequeued by the Host Port in a Round-Robin manner. Until commit under Fixes, the am65-cpsw driver enabled a single TX DMA Channel, due to which, unless modified by user via "ethtool", all traffic from Linux is transmitted on DMA Channel 0. Therefore, configuring the Host Port for priority based dequeuing or Round-Robin operation is identical since there is a single DMA Channel. Since commit under Fixes, all 8 TX DMA Channels are enabled by default. Additionally, the default "tc mapping" doesn't take into account the possibility of different traffic profiles which various users might have. This results in traffic starvation at the Host Port due to the priority based dequeuing which has been enabled by default since the inception of the driver. The traffic starvation triggers NETDEV WATCHDOG timeout for all TX DMA Channels that haven't been serviced due to the presence of traffic on the higher priority TX DMA Channels. Fix this by defaulting to Round-Robin dequeuing at the Host Port, which shall ensure that traffic is dequeued from all TX DMA Channels irrespective of the traffic profile. This will address the NETDEV WATCHDOG timeouts. At the same time, users can still switch from Round-Robin to Priority based dequeuing at the Host Port with the help of the "p0-rx-ptype-rrobin" private flag of "ethtool". Users are expected to setup an appropriate "tc mapping" that suits their traffic profile when switching to priority based dequeuing at the Host Port. Fixes: be397ea ("net: ethernet: am65-cpsw: Set default TX channels to maximum") Cc: <[email protected]> Signed-off-by: Siddharth Vadapalli <[email protected]> Link: https://patch.msgid.link/[email protected] Signed-off-by: Jakub Kicinski <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
… schemes commit 7d390b5 upstream. damon_commit_schemes() ignores quota goals and filters of the newly committed schemes. This makes users confused about the behaviors. Correctly handle those inputs. Link: https://lkml.kernel.org/r/[email protected] Fixes: 9cb3d0b ("mm/damon/core: implement DAMON context commit function") Signed-off-by: SeongJae Park <[email protected]> Cc: <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
…gets() commit 8debfc5 upstream. Patch series "mm/damon/core: fix memory leaks and ignored inputs from damon_commit_ctx()". Due to two bugs in damon_commit_targets() and damon_commit_schemes(), which are called from damon_commit_ctx(), some user inputs can be ignored, and some mmeory objects can be leaked. Fix those. Note that only DAMON sysfs interface users are affected. Other DAMON core API user modules that more focused more on simple and dedicated production usages, including DAMON_RECLAIM and DAMON_LRU_SORT are not using the buggy function in the way, so not affected. This patch (of 2): When new DAMON targets are added via damon_commit_targets(), the newly created targets are not deallocated when updating the internal data (damon_commit_target()) is failed. Worse yet, even if the setup is successfully done, the new target is not linked to the context. Hence, the new targets are always leaked regardless of the internal data setup failure. Fix the leaks. Link: https://lkml.kernel.org/r/[email protected] Fixes: 9cb3d0b ("mm/damon/core: implement DAMON context commit function") Signed-off-by: SeongJae Park <[email protected]> Cc: <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
commit d77b90d upstream. The 'shmem_falloc->nr_unswapped' is used to record how many writepage refused to swap out because fallocate() is allocating, but after shmem supports large folio swap out, the update of 'shmem_falloc->nr_unswapped' does not use the correct number of pages in the large folio, which may lead to fallocate() not exiting as soon as possible. Anyway, this is found through code inspection, and I am not sure whether it would actually cause serious issues. Link: https://lkml.kernel.org/r/f66a0119d0564c2c37c84f045835b870d1b2196f.1734593154.git.baolin.wang@linux.alibaba.com Fixes: 809bc86 ("mm: shmem: support large folio swap out") Signed-off-by: Baolin Wang <[email protected]> Acked-by: David Hildenbrand <[email protected]> Cc: Hugh Dickins <[email protected]> Cc: <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
commit d0e6983 upstream. With enabling the shmem per-size within_size policy, using an incorrect 'order' size to round_up() the index can lead to incorrect i_size checks, resulting in an inappropriate large orders being returned. Changing to use '1 << order' to round_up() the index to fix this issue. Additionally, adding an 'aligned_index' variable to avoid affecting the index checks. Link: https://lkml.kernel.org/r/77d8ef76a7d3d646e9225e9af88a76549a68aab1.1734593154.git.baolin.wang@linux.alibaba.com Fixes: e7a2ab7 ("mm: shmem: add mTHP support for anonymous shmem") Signed-off-by: Baolin Wang <[email protected]> Acked-by: David Hildenbrand <[email protected]> Cc: Hugh Dickins <[email protected]> Cc: <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
commit 3754137 upstream. Entries (including flags) are u64, even on 32bit. So right now we are cutting of the flags on 32bit. This way, for example the cow selftest complains about: # ./cow ... Bail Out! read and ioctl return unmatched results for populated: 0 1 Link: https://lkml.kernel.org/r/[email protected] Fixes: 2c1f057 ("fs/proc/task_mmu: properly detect PM_MMAP_EXCLUSIVE per page of PMD-mapped THPs") Signed-off-by: David Hildenbrand <[email protected]> Cc: Oscar Salvador <[email protected]> Cc: <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
commit ba0925c upstream. When busy polling is enabled, xsk_sendmsg for AF_XDP zero copy marks the NAPI ID corresponding to the memory pool allocated for the socket. In GVE, this NAPI ID will never correspond to a NAPI ID of one of the dedicated XDP TX queues registered with the umem because XDP TX is not set up to share a NAPI with a corresponding RX queue. This patch moves XSK TX descriptor processing from the TX NAPI to the RX NAPI, and the gve_xsk_wakeup callback is updated to use the RX NAPI instead of the TX NAPI, accordingly. The branch on if the wakeup is for TX is removed, as the NAPI poll should be invoked whether the wakeup is for TX or for RX. Fixes: fd8e403 ("gve: Add AF_XDP zero-copy support for GQI-QPL format") Cc: [email protected] Signed-off-by: Praveen Kaligineedi <[email protected]> Signed-off-by: Joshua Washington <[email protected]> Reviewed-by: Willem de Bruijn <[email protected]> Signed-off-by: David S. Miller <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
commit 6321f5f upstream. When stopping XDP TX rings, the XDP clean function needs to be called to clean out the entire queue, similar to what happens in the normal TX queue case. Otherwise, the FIFO won't be cleared correctly, and xsk_tx_completed won't be reported. Fixes: 75eaae1 ("gve: Add XDP DROP and TX support for GQI-QPL format") Cc: [email protected] Signed-off-by: Joshua Washington <[email protected]> Signed-off-by: Praveen Kaligineedi <[email protected]> Reviewed-by: Praveen Kaligineedi <[email protected]> Reviewed-by: Willem de Bruijn <[email protected]> Signed-off-by: David S. Miller <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
commit 40338d7 upstream. This patch predicates the enabling and disabling of XSK pools on the existence of queues. As it stands, if the interface is down, disabling or enabling XSK pools would result in a crash, as the RX queue pointer would be NULL. XSK pool registration will occur as part of the next interface up. Similarly, xsk_wakeup needs be guarded against queues disappearing while the function is executing, so a check against the GVE_PRIV_FLAGS_NAPI_ENABLED flag is added to synchronize with the disabling of the bit and the synchronize_net() in gve_turndown. Fixes: fd8e403 ("gve: Add AF_XDP zero-copy support for GQI-QPL format") Cc: [email protected] Signed-off-by: Joshua Washington <[email protected]> Signed-off-by: Praveen Kaligineedi <[email protected]> Reviewed-by: Praveen Kaligineedi <[email protected]> Reviewed-by: Shailend Chand <[email protected]> Reviewed-by: Willem de Bruijn <[email protected]> Reviewed-by: Larysa Zaremba <[email protected]> Signed-off-by: David S. Miller <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
commit de63ac4 upstream. This patch fixes a number of consistency issues in the queue allocation path related to XDP. As it stands, the number of allocated XDP queues changes in three different scenarios. 1) Adding an XDP program while the interface is up via gve_add_xdp_queues 2) Removing an XDP program while the interface is up via gve_remove_xdp_queues 3) After queues have been allocated and the old queue memory has been removed in gve_queues_start. However, the requirement for the interface to be up for gve_(add|remove)_xdp_queues to be called, in conjunction with the fact that the number of queues stored in priv isn't updated until _after_ XDP queues have been allocated in the normal queue allocation path means that if an XDP program is added while the interface is down, XDP queues won't be added until the _second_ if_up, not the first. Given the expectation that the number of XDP queues is equal to the number of RX queues, scenario (3) has another problematic implication. When changing the number of queues while an XDP program is loaded, the number of XDP queues must be updated as well, as there is logic in the driver (gve_xdp_tx_queue_id()) which relies on every RX queue having a corresponding XDP TX queue. However, the number of XDP queues stored in priv would not be updated until _after_ a close/open leading to a mismatch in the number of XDP queues reported vs the number of XDP queues which actually exist after the queue count update completes. This patch remedies these issues by doing the following: 1) The allocation config getter function is set up to retrieve the _expected_ number of XDP queues to allocate instead of relying on the value stored in `priv` which is only updated once the queues have been allocated. 2) When adjusting queues, XDP queues are adjusted to match the number of RX queues when XDP is enabled. This only works in the case when queues are live, so part (1) of the fix must still be available in the case that queues are adjusted when there is an XDP program and the interface is down. Fixes: 5f08cd3 ("gve: Alloc before freeing when adjusting queues") Cc: [email protected] Signed-off-by: Joshua Washington <[email protected]> Signed-off-by: Praveen Kaligineedi <[email protected]> Reviewed-by: Praveen Kaligineedi <[email protected]> Reviewed-by: Shailend Chand <[email protected]> Reviewed-by: Willem de Bruijn <[email protected]> Signed-off-by: David S. Miller <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
commit ff7c2de upstream. In GVE, dedicated XDP queues only exist when an XDP program is installed and the interface is up. As such, the NDO XDP XMIT callback should return early if either of these conditions are false. In the case of no loaded XDP program, priv->num_xdp_queues=0 which can cause a divide-by-zero error, and in the case of interface down, num_xdp_queues remains untouched to persist XDP queue count for the next interface up, but the TX pointer itself would be NULL. The XDP xmit callback also needs to synchronize with a device transitioning from open to close. This synchronization will happen via the GVE_PRIV_FLAGS_NAPI_ENABLED bit along with a synchronize_net() call, which waits for any RCU critical sections at call-time to complete. Fixes: 39a7f4a ("gve: Add XDP REDIRECT support for GQI-QPL format") Cc: [email protected] Signed-off-by: Joshua Washington <[email protected]> Signed-off-by: Praveen Kaligineedi <[email protected]> Reviewed-by: Praveen Kaligineedi <[email protected]> Reviewed-by: Shailend Chand <[email protected]> Reviewed-by: Willem de Bruijn <[email protected]> Signed-off-by: David S. Miller <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
commit fb3a9a1 upstream. Commit ba0925c ("gve: process XSK TX descriptors as part of RX NAPI") moved XSK TX processing to be part of the RX NAPI. However, that commit did not include triggering the RX NAPI in gve_xsk_wakeup. This is necessary because the TX NAPI only processes TX completions, meaning that a TX wakeup would not actually trigger XSK descriptor processing. Also, the branch on XDP_WAKEUP_TX was supposed to have been removed, as the NAPI should be scheduled whether the wakeup is for RX or TX. Fixes: ba0925c ("gve: process XSK TX descriptors as part of RX NAPI") Cc: [email protected] Signed-off-by: Joshua Washington <[email protected]> Signed-off-by: Praveen Kaligineedi <[email protected]> Link: https://patch.msgid.link/[email protected] Signed-off-by: Jakub Kicinski <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
commit 158cdce upstream. When testing large folio support with XFS on our servers, we observed that only a few large folios are mapped when reading large files via mmap. After a thorough analysis, I identified it was caused by the `/sys/block/*/queue/read_ahead_kb` setting. On our test servers, this parameter is set to 128KB. After I tune it to 2MB, the large folio can work as expected. However, I believe the large folio behavior should not be dependent on the value of read_ahead_kb. It would be more robust if the kernel can automatically adopt to it. With /sys/block/*/queue/read_ahead_kb set to 128KB and performing a sequential read on a 1GB file using MADV_HUGEPAGE, the differences in /proc/meminfo are as follows: - before this patch FileHugePages: 18432 kB FilePmdMapped: 4096 kB - after this patch FileHugePages: 1067008 kB FilePmdMapped: 1048576 kB This shows that after applying the patch, the entire 1GB file is mapped to huge pages. The stable list is CCed, as without this patch, large folios don't function optimally in the readahead path. It's worth noting that if read_ahead_kb is set to a larger value that isn't aligned with huge page sizes (e.g., 4MB + 128KB), it may still fail to map to hugepages. Link: https://lkml.kernel.org/r/[email protected] Link: https://lkml.kernel.org/r/[email protected] Fixes: 4687fdb ("mm/filemap: Support VM_HUGEPAGE for file mappings") Signed-off-by: Yafang Shao <[email protected]> Tested-by: kernel test robot <[email protected]> Cc: Matthew Wilcox <[email protected]> Cc: David Hildenbrand <[email protected]> Cc: <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
…nt message commit cddc76b upstream. Address a bug in the kernel that triggers a "sleeping function called from invalid context" warning when /sys/kernel/debug/kmemleak is printed under specific conditions: - CONFIG_PREEMPT_RT=y - Set SELinux as the LSM for the system - Set kptr_restrict to 1 - kmemleak buffer contains at least one item BUG: sleeping function called from invalid context at kernel/locking/spinlock_rt.c:48 in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 136, name: cat preempt_count: 1, expected: 0 RCU nest depth: 2, expected: 2 6 locks held by cat/136: #0: ffff32e64bcbf950 (&p->lock){+.+.}-{3:3}, at: seq_read_iter+0xb8/0xe30 #1: ffffafe6aaa9dea0 (scan_mutex){+.+.}-{3:3}, at: kmemleak_seq_start+0x34/0x128 #3: ffff32e6546b1cd0 (&object->lock){....}-{2:2}, at: kmemleak_seq_show+0x3c/0x1e0 #4: ffffafe6aa8d8560 (rcu_read_lock){....}-{1:2}, at: has_ns_capability_noaudit+0x8/0x1b0 #5: ffffafe6aabbc0f8 (notif_lock){+.+.}-{2:2}, at: avc_compute_av+0xc4/0x3d0 irq event stamp: 136660 hardirqs last enabled at (136659): [<ffffafe6a80fd7a0>] _raw_spin_unlock_irqrestore+0xa8/0xd8 hardirqs last disabled at (136660): [<ffffafe6a80fd85c>] _raw_spin_lock_irqsave+0x8c/0xb0 softirqs last enabled at (0): [<ffffafe6a5d50b28>] copy_process+0x11d8/0x3df8 softirqs last disabled at (0): [<0000000000000000>] 0x0 Preemption disabled at: [<ffffafe6a6598a4c>] kmemleak_seq_show+0x3c/0x1e0 CPU: 1 UID: 0 PID: 136 Comm: cat Tainted: G E 6.11.0-rt7+ #34 Tainted: [E]=UNSIGNED_MODULE Hardware name: linux,dummy-virt (DT) Call trace: dump_backtrace+0xa0/0x128 show_stack+0x1c/0x30 dump_stack_lvl+0xe8/0x198 dump_stack+0x18/0x20 rt_spin_lock+0x8c/0x1a8 avc_perm_nonode+0xa0/0x150 cred_has_capability.isra.0+0x118/0x218 selinux_capable+0x50/0x80 security_capable+0x7c/0xd0 has_ns_capability_noaudit+0x94/0x1b0 has_capability_noaudit+0x20/0x30 restricted_pointer+0x21c/0x4b0 pointer+0x298/0x760 vsnprintf+0x330/0xf70 seq_printf+0x178/0x218 print_unreferenced+0x1a4/0x2d0 kmemleak_seq_show+0xd0/0x1e0 seq_read_iter+0x354/0xe30 seq_read+0x250/0x378 full_proxy_read+0xd8/0x148 vfs_read+0x190/0x918 ksys_read+0xf0/0x1e0 __arm64_sys_read+0x70/0xa8 invoke_syscall.constprop.0+0xd4/0x1d8 el0_svc+0x50/0x158 el0t_64_sync+0x17c/0x180 %pS and %pK, in the same back trace line, are redundant, and %pS can void %pK service in certain contexts. %pS alone already provides the necessary information, and if it cannot resolve the symbol, it falls back to printing the raw address voiding the original intent behind the %pK. Additionally, %pK requires a privilege check CAP_SYSLOG enforced through the LSM, which can trigger a "sleeping function called from invalid context" warning under RT_PREEMPT kernels when the check occurs in an atomic context. This issue may also affect other LSMs. This change avoids the unnecessary privilege check and resolves the sleeping function warning without any loss of information. Link: https://lkml.kernel.org/r/[email protected] Fixes: 3a6f33d ("mm/kmemleak: use %pK to display kernel pointers in backtrace") Signed-off-by: Alessandro Carminati <[email protected]> Acked-by: Sebastian Andrzej Siewior <[email protected]> Acked-by: Catalin Marinas <[email protected]> Cc: Clément Léger <[email protected]> Cc: Alessandro Carminati <[email protected]> Cc: Eric Chanudet <[email protected]> Cc: Gabriele Paoloni <[email protected]> Cc: Juri Lelli <[email protected]> Cc: Steven Rostedt <[email protected]> Cc: Thomas Weißschuh <[email protected]> Cc: <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
…le_direct_reclaim() commit 6aaced5 upstream. The task sometimes continues looping in throttle_direct_reclaim() because allow_direct_reclaim(pgdat) keeps returning false. #0 [ffff80002cb6f8d0] __switch_to at ffff8000080095ac #1 [ffff80002cb6f900] __schedule at ffff800008abbd1c #2 [ffff80002cb6f990] schedule at ffff800008abc50c #3 [ffff80002cb6f9b0] throttle_direct_reclaim at ffff800008273550 #4 [ffff80002cb6fa20] try_to_free_pages at ffff800008277b68 #5 [ffff80002cb6fae0] __alloc_pages_nodemask at ffff8000082c4660 #6 [ffff80002cb6fc50] alloc_pages_vma at ffff8000082e4a98 #7 [ffff80002cb6fca0] do_anonymous_page at ffff80000829f5a8 #8 [ffff80002cb6fce0] __handle_mm_fault at ffff8000082a5974 #9 [ffff80002cb6fd90] handle_mm_fault at ffff8000082a5bd4 At this point, the pgdat contains the following two zones: NODE: 4 ZONE: 0 ADDR: ffff00817fffe540 NAME: "DMA32" SIZE: 20480 MIN/LOW/HIGH: 11/28/45 VM_STAT: NR_FREE_PAGES: 359 NR_ZONE_INACTIVE_ANON: 18813 NR_ZONE_ACTIVE_ANON: 0 NR_ZONE_INACTIVE_FILE: 50 NR_ZONE_ACTIVE_FILE: 0 NR_ZONE_UNEVICTABLE: 0 NR_ZONE_WRITE_PENDING: 0 NR_MLOCK: 0 NR_BOUNCE: 0 NR_ZSPAGES: 0 NR_FREE_CMA_PAGES: 0 NODE: 4 ZONE: 1 ADDR: ffff00817fffec00 NAME: "Normal" SIZE: 8454144 PRESENT: 98304 MIN/LOW/HIGH: 68/166/264 VM_STAT: NR_FREE_PAGES: 146 NR_ZONE_INACTIVE_ANON: 94668 NR_ZONE_ACTIVE_ANON: 3 NR_ZONE_INACTIVE_FILE: 735 NR_ZONE_ACTIVE_FILE: 78 NR_ZONE_UNEVICTABLE: 0 NR_ZONE_WRITE_PENDING: 0 NR_MLOCK: 0 NR_BOUNCE: 0 NR_ZSPAGES: 0 NR_FREE_CMA_PAGES: 0 In allow_direct_reclaim(), while processing ZONE_DMA32, the sum of inactive/active file-backed pages calculated in zone_reclaimable_pages() based on the result of zone_page_state_snapshot() is zero. Additionally, since this system lacks swap, the calculation of inactive/ active anonymous pages is skipped. crash> p nr_swap_pages nr_swap_pages = $1937 = { counter = 0 } As a result, ZONE_DMA32 is deemed unreclaimable and skipped, moving on to the processing of the next zone, ZONE_NORMAL, despite ZONE_DMA32 having free pages significantly exceeding the high watermark. The problem is that the pgdat->kswapd_failures hasn't been incremented. crash> px ((struct pglist_data *) 0xffff00817fffe540)->kswapd_failures $1935 = 0x0 This is because the node deemed balanced. The node balancing logic in balance_pgdat() evaluates all zones collectively. If one or more zones (e.g., ZONE_DMA32) have enough free pages to meet their watermarks, the entire node is deemed balanced. This causes balance_pgdat() to exit early before incrementing the kswapd_failures, as it considers the overall memory state acceptable, even though some zones (like ZONE_NORMAL) remain under significant pressure. The patch ensures that zone_reclaimable_pages() includes free pages (NR_FREE_PAGES) in its calculation when no other reclaimable pages are available (e.g., file-backed or anonymous pages). This change prevents zones like ZONE_DMA32, which have sufficient free pages, from being mistakenly deemed unreclaimable. By doing so, the patch ensures proper node balancing, avoids masking pressure on other zones like ZONE_NORMAL, and prevents infinite loops in throttle_direct_reclaim() caused by allow_direct_reclaim(pgdat) repeatedly returning false. The kernel hangs due to a task stuck in throttle_direct_reclaim(), caused by a node being incorrectly deemed balanced despite pressure in certain zones, such as ZONE_NORMAL. This issue arises from zone_reclaimable_pages() returning 0 for zones without reclaimable file- backed or anonymous pages, causing zones like ZONE_DMA32 with sufficient free pages to be skipped. The lack of swap or reclaimable pages results in ZONE_DMA32 being ignored during reclaim, masking pressure in other zones. Consequently, pgdat->kswapd_failures remains 0 in balance_pgdat(), preventing fallback mechanisms in allow_direct_reclaim() from being triggered, leading to an infinite loop in throttle_direct_reclaim(). This patch modifies zone_reclaimable_pages() to account for free pages (NR_FREE_PAGES) when no other reclaimable pages exist. This ensures zones with sufficient free pages are not skipped, enabling proper balancing and reclaim behavior. [[email protected]: coding-style cleanups] Link: https://lkml.kernel.org/r/[email protected] Link: https://lkml.kernel.org/r/[email protected] Fixes: 5a1c84b ("mm: remove reclaim and compaction retry approximations") Signed-off-by: Seiji Nishikawa <[email protected]> Cc: Mel Gorman <[email protected]> Cc: <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
commit 8ec396d upstream. Patch series "mm: reinstate ability to map write-sealed memfd mappings read-only". In commit 1589789 ("mm: perform the mapping_map_writable() check after call_mmap()") (and preceding changes in the same series) it became possible to mmap() F_SEAL_WRITE sealed memfd mappings read-only. Commit 5de1950 ("mm: resolve faulty mmap_region() error path behaviour") unintentionally undid this logic by moving the mapping_map_writable() check before the shmem_mmap() hook is invoked, thereby regressing this change. This series reworks how we both permit write-sealed mappings being mapped read-only and disallow mprotect() from undoing the write-seal, fixing this regression. We also add a regression test to ensure that we do not accidentally regress this in future. Thanks to Julian Orth for reporting this regression. This patch (of 2): In commit 1589789 ("mm: perform the mapping_map_writable() check after call_mmap()") (and preceding changes in the same series) it became possible to mmap() F_SEAL_WRITE sealed memfd mappings read-only. This was previously unnecessarily disallowed, despite the man page documentation indicating that it would be, thereby limiting the usefulness of F_SEAL_WRITE logic. We fixed this by adapting logic that existed for the F_SEAL_FUTURE_WRITE seal (one which disallows future writes to the memfd) to also be used for F_SEAL_WRITE. For background - the F_SEAL_FUTURE_WRITE seal clears VM_MAYWRITE for a read-only mapping to disallow mprotect() from overriding the seal - an operation performed by seal_check_write(), invoked from shmem_mmap(), the f_op->mmap() hook used by shmem mappings. By extending this to F_SEAL_WRITE and critically - checking mapping_map_writable() to determine if we may map the memfd AFTER we invoke shmem_mmap() - the desired logic becomes possible. This is because mapping_map_writable() explicitly checks for VM_MAYWRITE, which we will have cleared. Commit 5de1950 ("mm: resolve faulty mmap_region() error path behaviour") unintentionally undid this logic by moving the mapping_map_writable() check before the shmem_mmap() hook is invoked, thereby regressing this change. We reinstate this functionality by moving the check out of shmem_mmap() and instead performing it in do_mmap() at the point at which VMA flags are being determined, which seems in any case to be a more appropriate place in which to make this determination. In order to achieve this we rework memfd seal logic to allow us access to this information using existing logic and eliminate the clearing of VM_MAYWRITE from seal_check_write() which we are performing in do_mmap() instead. Link: https://lkml.kernel.org/r/99fc35d2c62bd2e05571cf60d9f8b843c56069e0.1732804776.git.lorenzo.stoakes@oracle.com Fixes: 5de1950 ("mm: resolve faulty mmap_region() error path behaviour") Signed-off-by: Lorenzo Stoakes <[email protected]> Reported-by: Julian Orth <[email protected]> Closes: https://lore.kernel.org/all/CAHijbEUMhvJTN9Xw1GmbM266FXXv=U7s4L_Jem5x3AaPZxrYpQ@mail.gmail.com/ Cc: Jann Horn <[email protected]> Cc: Liam R. Howlett <[email protected]> Cc: Linus Torvalds <[email protected]> Cc: Shuah Khan <[email protected]> Cc: Vlastimil Babka <[email protected]> Cc: <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
commit 59d9094 upstream. The folio refcount may be increased unexpectly through try_get_folio() by caller such as split_huge_pages. In huge_pmd_unshare(), we use refcount to check whether a pmd page table is shared. The check is incorrect if the refcount is increased by the above caller, and this can cause the page table leaked: BUG: Bad page state in process sh pfn:109324 page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x66 pfn:0x109324 flags: 0x17ffff800000000(node=0|zone=2|lastcpupid=0xfffff) page_type: f2(table) raw: 017ffff800000000 0000000000000000 0000000000000000 0000000000000000 raw: 0000000000000066 0000000000000000 00000000f2000000 0000000000000000 page dumped because: nonzero mapcount ... CPU: 31 UID: 0 PID: 7515 Comm: sh Kdump: loaded Tainted: G B 6.13.0-rc2master+ #7 Tainted: [B]=BAD_PAGE Hardware name: QEMU KVM Virtual Machine, BIOS 0.0.0 02/06/2015 Call trace: show_stack+0x20/0x38 (C) dump_stack_lvl+0x80/0xf8 dump_stack+0x18/0x28 bad_page+0x8c/0x130 free_page_is_bad_report+0xa4/0xb0 free_unref_page+0x3cc/0x620 __folio_put+0xf4/0x158 split_huge_pages_all+0x1e0/0x3e8 split_huge_pages_write+0x25c/0x2d8 full_proxy_write+0x64/0xd8 vfs_write+0xcc/0x280 ksys_write+0x70/0x110 __arm64_sys_write+0x24/0x38 invoke_syscall+0x50/0x120 el0_svc_common.constprop.0+0xc8/0xf0 do_el0_svc+0x24/0x38 el0_svc+0x34/0x128 el0t_64_sync_handler+0xc8/0xd0 el0t_64_sync+0x190/0x198 The issue may be triggered by damon, offline_page, page_idle, etc, which will increase the refcount of page table. 1. The page table itself will be discarded after reporting the "nonzero mapcount". 2. The HugeTLB page mapped by the page table miss freeing since we treat the page table as shared and a shared page table will not be unmapped. Fix it by introducing independent PMD page table shared count. As described by comment, pt_index/pt_mm/pt_frag_refcount are used for s390 gmap, x86 pgds and powerpc, pt_share_count is used for x86/arm64/riscv pmds, so we can reuse the field as pt_share_count. Link: https://lkml.kernel.org/r/[email protected] Fixes: 39dde65 ("[PATCH] shared page table for hugetlb page") Signed-off-by: Liu Shixin <[email protected]> Cc: Kefeng Wang <[email protected]> Cc: Ken Chen <[email protected]> Cc: Muchun Song <[email protected]> Cc: Nanyong Sun <[email protected]> Cc: Jane Chu <[email protected]> Cc: <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
Signed-off-by: Michael Aaron Murphy <[email protected]>
The pin fixup is required to detect headset microphones on the oryp5. Fixes: 80690a2 ("ALSA: hda/realtek - Add quirk for Tuxedo XC 1509") Signed-off-by: Tim Crawford <[email protected]>
Asus released motherboard(s) with an alternate ALC4080 that lacks a SPDIF jack, and requires applying this map.
The Aorus Xtreme uses the same ID for audio controller, but the maps are very different. This successfully fixes all of the audio jacks on the back.
When plugging of unplugging an audio jack on this motherbaord, sometimes the audio jacks would stop appearing to pipewire/pulseaudio. Interestingly `cat`-ing out the file `/proc/asound/<card number>/codec#0`, and or restarting pipewire fixes the issue temporarily. This PR improves the current functionality by making hotplug with one 3.5mm jack work, it still breaks if hotplug is between multiple jacks though.
This reverts commit 86f4c65.
This reverts commit b38f2d5.
This reverts commit 81f6650.
Signed-off-by: Tim Crawford <[email protected]>
This reverts commit 112a7f9.
This reverts commit 0470d83. Barlow Ridge removes support for FWCM. Signed-off-by: Tim Crawford <[email protected]>
The Nvidia proprietary driver has some bugs that leads to issues if used with the simpledrm driver. The most noticeable is that does not register an emulated fbdev device. It just relies on a fbdev to be registered by another driver, that could be that could be attached to the framebuffer console. On UEFI machines, this is the efifb driver. This means that disabling the efifb driver will cause virtual consoles to not be present in the system when using the Nvidia driver. Legacy BIOS is not affected just because fbcon is not used there, but instead vgacon. Unless a VGA mode is specified using the vga= kernel command line option, in that case the vesafb driver is used instead and its fbdev attached to the fbcon. This is a problem because with CONFIG_SYSFB_SIMPLEFB=y, the sysfb platform code attempts to register a "simple-framebuffer" platform device (that is matched against simpledrm) and only registers either an "efi-framebuffer" or "vesa-framebuffer" if this fails to be registered due the video modes not being compatible. The Nvidia driver relying on another driver to register the fbdev is quite fragile, since it can't really assume those will stick around. For example there are patches posted to remove the EFI and VESA platform devices once a real DRM or fbdev driver probes. But in any case, moving to a simpledrm + emulated fbdev only breaks this assumption and causes users to not have VT if the Nvidia driver is used. So to prevent this, let's add a workaround and make the sysfb to skip the "simple-framebuffer" registration when nvidia-drm.modeset=1 option is set. This is quite horrible, but honestly I can't think of any other approach. For this to work, the CONFIG_FB_EFI and CONFIG_FB_VESA config options must be enabled besides CONFIG_DRM_SIMPLEDRM. Signed-off-by: Javier Martinez Canillas <[email protected]>
….202412060638 Signed-off-by: Michael Aaron Murphy <[email protected]>
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Packaging for 6.12.10