CVSS: -EPSS: 0%CPEs: 2EXPL: 0CVE-2024-50225 – btrfs: fix error propagation of split bios
https://notcve.org/view.php?id=CVE-2024-50225
In the Linux kernel, the following vulnerability has been resolved: btrfs: fix error propagation of split bios The purpose of btrfs_bbio_propagate_error() shall be propagating an error of split bio to its original btrfs_bio, and tell the error to the upper layer. However, it's not working well on some cases. * Case 1. Immediate (or quick) end_bio with an error When btrfs sends btrfs_bio to mirrored devices, btrfs calls btrfs_bio_end_io() when all the mirroring bios are completed. If that btrfs_bio was split, it is from btrfs_clone_bioset and its end_io function is btrfs_orig_write_end_io. For this case, btrfs_bbio_propagate_error() accesses the orig_bbio's bio context to increase the error count. That works well in most cases. • https://git.kernel.org/stable/c/852eee62d31abd695cd43e1b875d664ed292a8ca https://git.kernel.org/stable/c/22833d89b780ba0f9f66e19c477e7decf638edce https://git.kernel.org/stable/c/d48e1dea3931de64c26717adc2b89743c7ab6594 •
CVSS: -EPSS: 0%CPEs: 3EXPL: 0CVE-2024-50224 – spi: spi-fsl-dspi: Fix crash when not using GPIO chip select
https://notcve.org/view.php?id=CVE-2024-50224
In the Linux kernel, the following vulnerability has been resolved: spi: spi-fsl-dspi: Fix crash when not using GPIO chip select Add check for the return value of spi_get_csgpiod() to avoid passing a NULL pointer to gpiod_direction_output(), preventing a crash when GPIO chip select is not used. Fix below crash: [ 4.251960] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000 [ 4.260762] Mem abort info: [ 4.263556] ESR = 0x0000000096000004 [ 4.267308] EC = 0x25: DABT (current EL), IL = 32 bits [ 4.272624] SET = 0, FnV = 0 [ 4.275681] EA = 0, S1PTW = 0 [ 4.278822] FSC = 0x04: level 0 translation fault [ 4.283704] Data abort info: [ 4.286583] ISV = 0, ISS = 0x00000004, ISS2 = 0x00000000 [ 4.292074] CM = 0, WnR = 0, TnD = 0, TagAccess = 0 [ 4.297130] GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0 [ 4.302445] [0000000000000000] user address but active_mm is swapper [ 4.308805] Internal error: Oops: 0000000096000004 [#1] PREEMPT SMP [ 4.315072] Modules linked in: [ 4.318124] CPU: 2 UID: 0 PID: 1 Comm: swapper/0 Not tainted 6.12.0-rc4-next-20241023-00008-ga20ec42c5fc1 #359 [ 4.328130] Hardware name: LS1046A QDS Board (DT) [ 4.332832] pstate: 40000005 (nZcv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 4.339794] pc : gpiod_direction_output+0x34/0x5c [ 4.344505] lr : gpiod_direction_output+0x18/0x5c [ 4.349208] sp : ffff80008003b8f0 [ 4.352517] x29: ffff80008003b8f0 x28: 0000000000000000 x27: ffffc96bcc7e9068 [ 4.359659] x26: ffffc96bcc6e00b0 x25: ffffc96bcc598398 x24: ffff447400132810 [ 4.366800] x23: 0000000000000000 x22: 0000000011e1a300 x21: 0000000000020002 [ 4.373940] x20: 0000000000000000 x19: 0000000000000000 x18: ffffffffffffffff [ 4.381081] x17: ffff44740016e600 x16: 0000000500000003 x15: 0000000000000007 [ 4.388221] x14: 0000000000989680 x13: 0000000000020000 x12: 000000000000001e [ 4.395362] x11: 0044b82fa09b5a53 x10: 0000000000000019 x9 : 0000000000000008 [ 4.402502] x8 : 0000000000000002 x7 : 0000000000000007 x6 : 0000000000000000 [ 4.409641] x5 : 0000000000000200 x4 : 0000000002000000 x3 : 0000000000000000 [ 4.416781] x2 : 0000000000022202 x1 : 0000000000000000 x0 : 0000000000000000 [ 4.423921] Call trace: [ 4.426362] gpiod_direction_output+0x34/0x5c (P) [ 4.431067] gpiod_direction_output+0x18/0x5c (L) [ 4.435771] dspi_setup+0x220/0x334 • https://git.kernel.org/stable/c/9e264f3f85a56cc109cc2d6010a48aa89d5c1ff1 https://git.kernel.org/stable/c/e79c1f1c9100b4adc91c6512985db2cc961aafaa https://git.kernel.org/stable/c/89f74c968319d040739d6238e1c3a4caa16a5a00 https://git.kernel.org/stable/c/25f00a13dccf8e45441265768de46c8bf58e08f6 •
CVSS: -EPSS: 0%CPEs: 3EXPL: 0CVE-2024-50223 – sched/numa: Fix the potential null pointer dereference in task_numa_work()
https://notcve.org/view.php?id=CVE-2024-50223
In the Linux kernel, the following vulnerability has been resolved: sched/numa: Fix the potential null pointer dereference in task_numa_work() When running stress-ng-vm-segv test, we found a null pointer dereference error in task_numa_work(). Here is the backtrace: [323676.066985] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000020 ...... [323676.067108] CPU: 35 PID: 2694524 Comm: stress-ng-vm-se ...... [323676.067113] pstate: 23401009 (nzCv daif +PAN -UAO +TCO +DIT +SSBS BTYPE=--) [323676.067115] pc : vma_migratable+0x1c/0xd0 [323676.067122] lr : task_numa_work+0x1ec/0x4e0 [323676.067127] sp : ffff8000ada73d20 [323676.067128] x29: ffff8000ada73d20 x28: 0000000000000000 x27: 000000003e89f010 [323676.067130] x26: 0000000000080000 x25: ffff800081b5c0d8 x24: ffff800081b27000 [323676.067133] x23: 0000000000010000 x22: 0000000104d18cc0 x21: ffff0009f7158000 [323676.067135] x20: 0000000000000000 x19: 0000000000000000 x18: ffff8000ada73db8 [323676.067138] x17: 0001400000000000 x16: ffff800080df40b0 x15: 0000000000000035 [323676.067140] x14: ffff8000ada73cc8 x13: 1fffe0017cc72001 x12: ffff8000ada73cc8 [323676.067142] x11: ffff80008001160c x10: ffff000be639000c x9 : ffff8000800f4ba4 [323676.067145] x8 : ffff000810375000 x7 : ffff8000ada73974 x6 : 0000000000000001 [323676.067147] x5 : 0068000b33e26707 x4 : 0000000000000001 x3 : ffff0009f7158000 [323676.067149] x2 : 0000000000000041 x1 : 0000000000004400 x0 : 0000000000000000 [323676.067152] Call trace: [323676.067153] vma_migratable+0x1c/0xd0 [323676.067155] task_numa_work+0x1ec/0x4e0 [323676.067157] task_work_run+0x78/0xd8 [323676.067161] do_notify_resume+0x1ec/0x290 [323676.067163] el0_svc+0x150/0x160 [323676.067167] el0t_64_sync_handler+0xf8/0x128 [323676.067170] el0t_64_sync+0x17c/0x180 [323676.067173] Code: d2888001 910003fd f9000bf3 aa0003f3 (f9401000) [323676.067177] SMP: stopping secondary CPUs [323676.070184] Starting crashdump kernel... stress-ng-vm-segv in stress-ng is used to stress test the SIGSEGV error handling function of the system, which tries to cause a SIGSEGV error on return from unmapping the whole address space of the child process. Normally this program will not cause kernel crashes. But before the munmap system call returns to user mode, a potential task_numa_work() for numa balancing could be added and executed. In this scenario, since the child process has no vma after munmap, the vma_next() in task_numa_work() will return a null pointer even if the vma iterator restarts from 0. Recheck the vma pointer before dereferencing it in task_numa_work(). • https://git.kernel.org/stable/c/214dbc4281374cbbd833edd502d0ed1fd1b0e243 https://git.kernel.org/stable/c/ade91f6e9848b370add44d89c976e070ccb492ef https://git.kernel.org/stable/c/c60d98ef7078fc3e22b48e98eae7a897d88494ee https://git.kernel.org/stable/c/9c70b2a33cd2aa6a5a59c5523ef053bd42265209 •
CVSS: -EPSS: 0%CPEs: 5EXPL: 0CVE-2024-50219 – mm/page_alloc: let GFP_ATOMIC order-0 allocs access highatomic reserves
https://notcve.org/view.php?id=CVE-2024-50219
In the Linux kernel, the following vulnerability has been resolved: mm/page_alloc: let GFP_ATOMIC order-0 allocs access highatomic reserves Under memory pressure it's possible for GFP_ATOMIC order-0 allocations to fail even though free pages are available in the highatomic reserves. GFP_ATOMIC allocations cannot trigger unreserve_highatomic_pageblock() since it's only run from reclaim. Given that such allocations will pass the watermarks in __zone_watermark_unusable_free(), it makes sense to fallback to highatomic reserves the same way that ALLOC_OOM can. This fixes order-0 page allocation failures observed on Cloudflare's fleet when handling network packets: kswapd1: page allocation failure: order:0, mode:0x820(GFP_ATOMIC), nodemask=(null),cpuset=/,mems_allowed=0-7 CPU: 10 PID: 696 Comm: kswapd1 Kdump: loaded Tainted: G O 6.6.43-CUSTOM #1 Hardware name: MACHINE Call Trace: <IRQ> dump_stack_lvl+0x3c/0x50 warn_alloc+0x13a/0x1c0 __alloc_pages_slowpath.constprop.0+0xc9d/0xd10 __alloc_pages+0x327/0x340 __napi_alloc_skb+0x16d/0x1f0 bnxt_rx_page_skb+0x96/0x1b0 [bnxt_en] bnxt_rx_pkt+0x201/0x15e0 [bnxt_en] __bnxt_poll_work+0x156/0x2b0 [bnxt_en] bnxt_poll+0xd9/0x1c0 [bnxt_en] __napi_poll+0x2b/0x1b0 bpf_trampoline_6442524138+0x7d/0x1000 __napi_poll+0x5/0x1b0 net_rx_action+0x342/0x740 handle_softirqs+0xcf/0x2b0 irq_exit_rcu+0x6c/0x90 sysvec_apic_timer_interrupt+0x72/0x90 </IRQ> [mfleming@cloudflare.com: update comment] Link: https://lkml.kernel.org/r/20241015125158.3597702-1-matt@readmodwrite.com • https://git.kernel.org/stable/c/1d91df85f399adbe4f318f3e74ac5a5d84c0ca7c https://git.kernel.org/stable/c/4c4e238d3adad3c94bb255d0f117d3685bbfdd33 https://git.kernel.org/stable/c/189b954469cf82f8b8cf496f8de94b006d2d4746 https://git.kernel.org/stable/c/b958948ae1cb3e39c48e9f805436fd652103c71e https://git.kernel.org/stable/c/d0fdacfb85a3e1223b894cc6e60091ec91049e9e https://git.kernel.org/stable/c/281dd25c1a018261a04d1b8bf41a0674000bfe38 •
CVSS: -EPSS: 0%CPEs: 8EXPL: 0CVE-2024-50218 – ocfs2: pass u64 to ocfs2_truncate_inline maybe overflow
https://notcve.org/view.php?id=CVE-2024-50218
In the Linux kernel, the following vulnerability has been resolved: ocfs2: pass u64 to ocfs2_truncate_inline maybe overflow Syzbot reported a kernel BUG in ocfs2_truncate_inline. There are two reasons for this: first, the parameter value passed is greater than ocfs2_max_inline_data_with_xattr, second, the start and end parameters of ocfs2_truncate_inline are "unsigned int". So, we need to add a sanity check for byte_start and byte_len right before ocfs2_truncate_inline() in ocfs2_remove_inode_range(), if they are greater than ocfs2_max_inline_data_with_xattr return -EINVAL. • https://git.kernel.org/stable/c/1afc32b952335f665327a1a9001ba1b44bb76fd9 https://git.kernel.org/stable/c/27d95867bee806cdc448d122bd99f1d8b0544035 https://git.kernel.org/stable/c/95fbed8ae8c32c0977e6be1721c190d8fea23f2f https://git.kernel.org/stable/c/70767689ec6ee5f05fb0a2c17d7ec1927946e486 https://git.kernel.org/stable/c/ecd62f684386fa64f9c0cea92eea361f4e6444c2 https://git.kernel.org/stable/c/2fe5d62e122b040ce7fc4d31aa7fa96ae328cefc https://git.kernel.org/stable/c/88f97a4b5843ce21c1286e082c02a5fb4d8eb473 https://git.kernel.org/stable/c/0b6b8c2055784261de3fb641c5d0d6396 •