{ "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": "2026-05-11T20:55:18.298Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T20:55:18.298Z" }, "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" } } ] } }