mirror of
https://github.com/fkie-cad/nvd-json-data-feeds.git
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33 lines
3.7 KiB
JSON
33 lines
3.7 KiB
JSON
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{
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"id": "CVE-2024-39474",
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"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"published": "2024-07-05T07:15:10.190",
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"lastModified": "2024-07-05T07:15:10.190",
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"vulnStatus": "Received",
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"cveTags": [],
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"descriptions": [
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{
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"lang": "en",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm/vmalloc: fix vmalloc which may return null if called with __GFP_NOFAIL\n\ncommit a421ef303008 (\"mm: allow !GFP_KERNEL allocations for kvmalloc\")\nincludes support for __GFP_NOFAIL, but it presents a conflict with commit\ndd544141b9eb (\"vmalloc: back off when the current task is OOM-killed\"). A\npossible scenario is as follows:\n\nprocess-a\n__vmalloc_node_range(GFP_KERNEL | __GFP_NOFAIL)\n __vmalloc_area_node()\n vm_area_alloc_pages()\n\t\t--> oom-killer send SIGKILL to process-a\n if (fatal_signal_pending(current)) break;\n--> return NULL;\n\nTo fix this, do not check fatal_signal_pending() in vm_area_alloc_pages()\nif __GFP_NOFAIL set.\n\nThis issue occurred during OPLUS KASAN TEST. Below is part of the log\n-> oom-killer sends signal to process\n[65731.222840] [ T1308] oom-kill:constraint=CONSTRAINT_NONE,nodemask=(null),cpuset=/,mems_allowed=0,global_oom,task_memcg=/apps/uid_10198,task=gs.intelligence,pid=32454,uid=10198\n\n[65731.259685] [T32454] Call trace:\n[65731.259698] [T32454] dump_backtrace+0xf4/0x118\n[65731.259734] [T32454] show_stack+0x18/0x24\n[65731.259756] [T32454] dump_stack_lvl+0x60/0x7c\n[65731.259781] [T32454] dump_stack+0x18/0x38\n[65731.259800] [T32454] mrdump_common_die+0x250/0x39c [mrdump]\n[65731.259936] [T32454] ipanic_die+0x20/0x34 [mrdump]\n[65731.260019] [T32454] atomic_notifier_call_chain+0xb4/0xfc\n[65731.260047] [T32454] notify_die+0x114/0x198\n[65731.260073] [T32454] die+0xf4/0x5b4\n[65731.260098] [T32454] die_kernel_fault+0x80/0x98\n[65731.260124] [T32454] __do_kernel_fault+0x160/0x2a8\n[65731.260146] [T32454] do_bad_area+0x68/0x148\n[65731.260174] [T32454] do_mem_abort+0x151c/0x1b34\n[65731.260204] [T32454] el1_abort+0x3c/0x5c\n[65731.260227] [T32454] el1h_64_sync_handler+0x54/0x90\n[65731.260248] [T32454] el1h_64_sync+0x68/0x6c\n\n[65731.260269] [T32454] z_erofs_decompress_queue+0x7f0/0x2258\n--> be->decompressed_pages = kvcalloc(be->nr_pages, sizeof(struct page *), GFP_KERNEL | __GFP_NOFAIL);\n\tkernel panic by NULL pointer dereference.\n\terofs assume kvmalloc with __GFP_NOFAIL never return NULL.\n[65731.260293] [T32454] z_erofs_runqueue+0xf30/0x104c\n[65731.260314] [T32454] z_erofs_readahead+0x4f0/0x968\n[65731.260339] [T32454] read_pages+0x170/0xadc\n[65731.260364] [T32454] page_cache_ra_unbounded+0x874/0xf30\n[65731.260388] [T32454] page_cache_ra_order+0x24c/0x714\n[65731.260411] [T32454] filemap_fault+0xbf0/0x1a74\n[65731.260437] [T32454] __do_fault+0xd0/0x33c\n[65731.260462] [T32454] handle_mm_fault+0xf74/0x3fe0\n[65731.260486] [T32454] do_mem_abort+0x54c/0x1b34\n[65731.260509] [T32454] el0_da+0x44/0x94\n[65731.260531] [T32454] el0t_64_sync_handler+0x98/0xb4\n[65731.260553] [T32454] el0t_64_sync+0x198/0x19c"
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}
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],
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"metrics": {},
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/198a80833e3421d4c9820a4ae907120adf598c91",
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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},
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{
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"url": "https://git.kernel.org/stable/c/758678b65164b2158fc1de411092191cb3c394d4",
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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},
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{
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"url": "https://git.kernel.org/stable/c/8e0545c83d672750632f46e3f9ad95c48c91a0fc",
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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},
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{
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"url": "https://git.kernel.org/stable/c/c55d3564ad25ce87ab7cc6af251f9574faebd8da",
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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}
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]
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}
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