{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2024-56585","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2024-12-27T14:03:06.001Z","datePublished":"2024-12-27T14:50:53.471Z","dateUpdated":"2025-11-03T20:50:04.075Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2025-05-04T09:59:03.931Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nLoongArch: Fix sleeping in atomic context for PREEMPT_RT\n\nCommit bab1c299f3945ffe79 (\"LoongArch: Fix sleeping in atomic context in\nsetup_tlb_handler()\") changes the gfp flag from GFP_KERNEL to GFP_ATOMIC\nfor alloc_pages_node(). However, for PREEMPT_RT kernels we can still get\na \"sleeping in atomic context\" error:\n\n[    0.372259] BUG: sleeping function called from invalid context at kernel/locking/spinlock_rt.c:48\n[    0.372266] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 0, name: swapper/1\n[    0.372268] preempt_count: 1, expected: 0\n[    0.372270] RCU nest depth: 1, expected: 1\n[    0.372272] 3 locks held by swapper/1/0:\n[    0.372274]  #0: 900000000c9f5e60 (&pcp->lock){+.+.}-{3:3}, at: get_page_from_freelist+0x524/0x1c60\n[    0.372294]  #1: 90000000087013b8 (rcu_read_lock){....}-{1:3}, at: rt_spin_trylock+0x50/0x140\n[    0.372305]  #2: 900000047fffd388 (&zone->lock){+.+.}-{3:3}, at: __rmqueue_pcplist+0x30c/0xea0\n[    0.372314] irq event stamp: 0\n[    0.372316] hardirqs last  enabled at (0): [<0000000000000000>] 0x0\n[    0.372322] hardirqs last disabled at (0): [<9000000005947320>] copy_process+0x9c0/0x26e0\n[    0.372329] softirqs last  enabled at (0): [<9000000005947320>] copy_process+0x9c0/0x26e0\n[    0.372335] softirqs last disabled at (0): [<0000000000000000>] 0x0\n[    0.372341] CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Not tainted 6.12.0-rc7+ #1891\n[    0.372346] Hardware name: Loongson Loongson-3A5000-7A1000-1w-CRB/Loongson-LS3A5000-7A1000-1w-CRB, BIOS vUDK2018-LoongArch-V2.0.0-prebeta9 10/21/2022\n[    0.372349] Stack : 0000000000000089 9000000005a0db9c 90000000071519c8 9000000100388000\n[    0.372486]         900000010038b890 0000000000000000 900000010038b898 9000000007e53788\n[    0.372492]         900000000815bcc8 900000000815bcc0 900000010038b700 0000000000000001\n[    0.372498]         0000000000000001 4b031894b9d6b725 00000000055ec000 9000000100338fc0\n[    0.372503]         00000000000000c4 0000000000000001 000000000000002d 0000000000000003\n[    0.372509]         0000000000000030 0000000000000003 00000000055ec000 0000000000000003\n[    0.372515]         900000000806d000 9000000007e53788 00000000000000b0 0000000000000004\n[    0.372521]         0000000000000000 0000000000000000 900000000c9f5f10 0000000000000000\n[    0.372526]         90000000076f12d8 9000000007e53788 9000000005924778 0000000000000000\n[    0.372532]         00000000000000b0 0000000000000004 0000000000000000 0000000000070000\n[    0.372537]         ...\n[    0.372540] Call Trace:\n[    0.372542] [<9000000005924778>] show_stack+0x38/0x180\n[    0.372548] [<90000000071519c4>] dump_stack_lvl+0x94/0xe4\n[    0.372555] [<900000000599b880>] __might_resched+0x1a0/0x260\n[    0.372561] [<90000000071675cc>] rt_spin_lock+0x4c/0x140\n[    0.372565] [<9000000005cbb768>] __rmqueue_pcplist+0x308/0xea0\n[    0.372570] [<9000000005cbed84>] get_page_from_freelist+0x564/0x1c60\n[    0.372575] [<9000000005cc0d98>] __alloc_pages_noprof+0x218/0x1820\n[    0.372580] [<900000000593b36c>] tlb_init+0x1ac/0x298\n[    0.372585] [<9000000005924b74>] per_cpu_trap_init+0x114/0x140\n[    0.372589] [<9000000005921964>] cpu_probe+0x4e4/0xa60\n[    0.372592] [<9000000005934874>] start_secondary+0x34/0xc0\n[    0.372599] [<900000000715615c>] smpboot_entry+0x64/0x6c\n\nThis is because in PREEMPT_RT kernels normal spinlocks are replaced by\nrt spinlocks and rt_spin_lock() will cause sleeping. Fix it by disabling\nNUMA optimization completely for PREEMPT_RT kernels."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["arch/loongarch/mm/tlb.c"],"versions":[{"version":"fa96b57c149061f71a70bd6582d995f6424fbbf4","lessThan":"08715b741f9b2a925d6485491e4907f3b29bac70","status":"affected","versionType":"git"},{"version":"fa96b57c149061f71a70bd6582d995f6424fbbf4","lessThan":"c5f89458a2ea0800866b9fc690d3fa8367dc8f8d","status":"affected","versionType":"git"},{"version":"fa96b57c149061f71a70bd6582d995f6424fbbf4","lessThan":"6575e0867bd478a5d7ef1783ca1e73160807d238","status":"affected","versionType":"git"},{"version":"fa96b57c149061f71a70bd6582d995f6424fbbf4","lessThan":"88fd2b70120d52c1010257d36776876941375490","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["arch/loongarch/mm/tlb.c"],"versions":[{"version":"5.19","status":"affected"},{"version":"0","lessThan":"5.19","status":"unaffected","versionType":"semver"},{"version":"6.1.120","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.66","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.5","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.13","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.19","versionEndExcluding":"6.1.120"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.19","versionEndExcluding":"6.6.66"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.19","versionEndExcluding":"6.12.5"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.19","versionEndExcluding":"6.13"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/08715b741f9b2a925d6485491e4907f3b29bac70"},{"url":"https://git.kernel.org/stable/c/c5f89458a2ea0800866b9fc690d3fa8367dc8f8d"},{"url":"https://git.kernel.org/stable/c/6575e0867bd478a5d7ef1783ca1e73160807d238"},{"url":"https://git.kernel.org/stable/c/88fd2b70120d52c1010257d36776876941375490"}],"title":"LoongArch: Fix sleeping in atomic context for PREEMPT_RT","x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html"}],"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2025-11-03T20:50:04.075Z"}}]}}