{ "schemaVersion": 1, "attribution": [ { "source": "CISA Known Exploited Vulnerabilities", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog", "licence": "US government work" }, { "source": "GitHub Advisory Database", "url": "https://github.com/advisories", "licence": "CC BY 4.0" }, { "source": "Have I Been Pwned", "url": "https://haveibeenpwned.com/", "licence": "CC BY 4.0" }, { "source": "CVE Program (CVE records)", "url": "https://www.cve.org/Legal/TermsOfUse", "licence": "CVE Terms of Use", "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.", "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy." }, { "source": "FIRST EPSS", "url": "https://www.first.org/epss/", "licence": "free to use; FIRST requests attribution" } ], "record": { "id": "CVE-2024-39474", "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2024-39474", "idYear": 2024, "status": "PUBLISHED", "publishedAt": "2024-07-05T06:55:05.178Z", "updatedAt": "2026-05-11T20:21:15.258Z", "importedAt": "2026-10-24T01:57:16.009Z", "snapshot": { "id": "cve_2026-10-24_midnight_baseline", "at": "2026-10-24T00:00:00.000Z", "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z" }, "facts": { "title": "mm/vmalloc: fix vmalloc which may return null if called with __GFP_NOFAIL", "summary": "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", "affected": [ { "vendor": "Linux", "product": "Linux", "defaultStatus": "unaffected", "versions": [ { "version": "9376130c390a76fac2788a5d6e1a149017b4ab50", "status": "affected", "versionType": "git", "lessThan": "198a80833e3421d4c9820a4ae907120adf598c91" }, { "version": "9376130c390a76fac2788a5d6e1a149017b4ab50", "status": "affected", "versionType": "git", "lessThan": "c55d3564ad25ce87ab7cc6af251f9574faebd8da" }, { "version": "9376130c390a76fac2788a5d6e1a149017b4ab50", "status": "affected", "versionType": "git", "lessThan": "758678b65164b2158fc1de411092191cb3c394d4" }, { "version": "9376130c390a76fac2788a5d6e1a149017b4ab50", "status": "affected", "versionType": "git", "lessThan": "8e0545c83d672750632f46e3f9ad95c48c91a0fc" } ] }, { "vendor": "Linux", "product": "Linux", "defaultStatus": "affected", "versions": [ { "version": "5.17", "status": "affected" }, { "version": "0", "status": "unaffected", "versionType": "semver", "lessThan": "5.17" }, { "version": "6.1.95", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.1.*" }, { "version": "6.6.34", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.6.*" }, { "version": "6.9.5", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.9.*" }, { "version": "6.10", "status": "unaffected", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*" } ] } ] } } }