{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2024-39474", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-06-25T14:23:23.745Z", "datePublished": "2024-07-05T06:55:05.178Z", "dateUpdated": "2024-12-19T09:06:52.003Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2024-12-19T09:06:52.003Z"}, "descriptions": [{"lang": "en", "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"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["mm/vmalloc.c"], "versions": [{"version": "9376130c390a76fac2788a5d6e1a149017b4ab50", "lessThan": "198a80833e3421d4c9820a4ae907120adf598c91", "status": "affected", "versionType": "git"}, {"version": "9376130c390a76fac2788a5d6e1a149017b4ab50", "lessThan": "c55d3564ad25ce87ab7cc6af251f9574faebd8da", "status": "affected", "versionType": "git"}, {"version": "9376130c390a76fac2788a5d6e1a149017b4ab50", "lessThan": "758678b65164b2158fc1de411092191cb3c394d4", "status": "affected", "versionType": "git"}, {"version": "9376130c390a76fac2788a5d6e1a149017b4ab50", "lessThan": "8e0545c83d672750632f46e3f9ad95c48c91a0fc", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["mm/vmalloc.c"], "versions": [{"version": "5.17", "status": "affected"}, {"version": "0", "lessThan": "5.17", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.95", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.34", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.9.5", "lessThanOrEqual": "6.9.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.10", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "references": [{"url": "https://git.kernel.org/stable/c/198a80833e3421d4c9820a4ae907120adf598c91"}, {"url": "https://git.kernel.org/stable/c/c55d3564ad25ce87ab7cc6af251f9574faebd8da"}, {"url": "https://git.kernel.org/stable/c/758678b65164b2158fc1de411092191cb3c394d4"}, {"url": "https://git.kernel.org/stable/c/8e0545c83d672750632f46e3f9ad95c48c91a0fc"}], "title": "mm/vmalloc: fix vmalloc which may return null if called with __GFP_NOFAIL", "x_generator": {"engine": "bippy-5f407fcff5a0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2024-07-08T17:54:33.929150Z", "id": "CVE-2024-39474", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-07-08T17:54:45.442Z"}}, {"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T04:26:14.977Z"}, "title": "CVE Program Container", "references": [{"url": "https://git.kernel.org/stable/c/198a80833e3421d4c9820a4ae907120adf598c91", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/c55d3564ad25ce87ab7cc6af251f9574faebd8da", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/758678b65164b2158fc1de411092191cb3c394d4", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/8e0545c83d672750632f46e3f9ad95c48c91a0fc", "tags": ["x_transferred"]}]}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CVE Program Container", "references": [{"url": "https://git.kernel.org/stable/c/198a80833e3421d4c9820a4ae907120adf598c91", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/c55d3564ad25ce87ab7cc6af251f9574faebd8da", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/758678b65164b2158fc1de411092191cb3c394d4", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/8e0545c83d672750632f46e3f9ad95c48c91a0fc", "tags": ["x_transferred"]}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T04:26:14.977Z"}}, {"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2024-39474", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-07-08T17:54:33.929150Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-07-08T17:54:42.720Z"}}], "cna": {"title": "mm/vmalloc: fix vmalloc which may return null if called with __GFP_NOFAIL", "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "9376130c390a76fac2788a5d6e1a149017b4ab50", "lessThan": "198a80833e3421d4c9820a4ae907120adf598c91", "versionType": "git"}, {"status": "affected", "version": "9376130c390a76fac2788a5d6e1a149017b4ab50", "lessThan": "c55d3564ad25ce87ab7cc6af251f9574faebd8da", "versionType": "git"}, {"status": "affected", "version": "9376130c390a76fac2788a5d6e1a149017b4ab50", "lessThan": "758678b65164b2158fc1de411092191cb3c394d4", "versionType": "git"}, {"status": "affected", "version": "9376130c390a76fac2788a5d6e1a149017b4ab50", "lessThan": "8e0545c83d672750632f46e3f9ad95c48c91a0fc", "versionType": "git"}], "programFiles": ["mm/vmalloc.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "5.17"}, {"status": "unaffected", "version": "0", "lessThan": "5.17", "versionType": "semver"}, {"status": "unaffected", "version": "6.1.95", "versionType": "semver", "lessThanOrEqual": "6.1.*"}, {"status": "unaffected", "version": "6.6.34", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.9.5", "versionType": "semver", "lessThanOrEqual": "6.9.*"}, {"status": "unaffected", "version": "6.10", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["mm/vmalloc.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/198a80833e3421d4c9820a4ae907120adf598c91"}, {"url": "https://git.kernel.org/stable/c/c55d3564ad25ce87ab7cc6af251f9574faebd8da"}, {"url": "https://git.kernel.org/stable/c/758678b65164b2158fc1de411092191cb3c394d4"}, {"url": "https://git.kernel.org/stable/c/8e0545c83d672750632f46e3f9ad95c48c91a0fc"}], "x_generator": {"engine": "bippy-5f407fcff5a0"}, "descriptions": [{"lang": "en", "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"}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2024-12-19T09:06:52.003Z"}}}, "cveMetadata": {"cveId": "CVE-2024-39474", "state": "PUBLISHED", "dateUpdated": "2024-12-19T09:06:52.003Z", "dateReserved": "2024-06-25T14:23:23.745Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2024-07-05T06:55:05.178Z", "assignerShortName": "Linux"}, "dataVersion": "5.1"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "A37A8EE9-3F14-4C7A-A882-DA8A6AD1897C", "versionEndExcluding": "5.17", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "FD98DE98-9D47-474B-A2EF-433D10E7459C", "versionEndExcluding": "6.1.95", "versionStartIncluding": "6.1", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "AC0C6E24-8240-425A-BD1A-F78E6D3A67FC", "versionEndExcluding": "6.6.34", "versionStartIncluding": "6.6", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "54EDFD02-25E6-4BC8-9AD0-0A59881F400A", "versionEndExcluding": "6.9.5", "versionStartIncluding": "6.9", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "descriptions": [{"lang": "en", "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"}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: mm/vmalloc: corrige vmalloc que puede devolver nulo si se llama con __GFP_NOFAIL commit a421ef303008 (\"mm: permitir asignaciones !GFP_KERNEL para kvmalloc\") incluye soporte para __GFP_NOFAIL, pero presenta un conflicto con el commit dd544141b9eb (\"vmalloc: retroceda cuando la tarea actual sea eliminada por OOM\"). Un posible escenario es el siguiente: procesar-a __vmalloc_node_range(GFP_KERNEL | __GFP_NOFAIL) __vmalloc_area_node() vm_area_alloc_pages() --> oom-killer env\u00eda SIGKILL al proceso-a if (fatal_signal_pending(current)) break; --> devolver NULO; Para solucionar este problema, no marque fatal_signal_pending() en vm_area_alloc_pages() si __GFP_NOFAIL est\u00e1 configurado. Este problema ocurri\u00f3 durante la PRUEBA DE OPLUS KASAN. A continuaci\u00f3n se muestra parte del registro -> oom-killer env\u00eda se\u00f1al para procesar [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 [65731.259685] [T32454] Rastreo de llamadas: [65731.259698] [T32454] dump_backtrace+0xf4/0x118 [65731.259734] [T32454] pila+0x18/0x24 [65731.259756] [ T32454] dump_stack_lvl+0x60/0x7c [65731.259781] [T32454] dump_stack+0x18/0x38 [65731.259800] [T32454] mrdump_common_die+0x250/0x39c [mrdump] [65731.259936] T32454] ipanic_die+0x20/0x34 [mrdump] [65731.260019] [ T32454] atomic_notifier_call_chain+0xb4/0xfc [65731.260047] [T32454] notify_die+0x114/0x198 [65731.260073] [T32454] die+0xf4/0x5b4 [65731.260098] [T32454] kernel_fault+0x80/0x98 [65731.260124] [T32454] __do_kernel_fault+0x160/ 0x2a8 [65731.260146] [T32454] do_bad_area+0x68/0x148 [65731.260174] [T32454] do_mem_abort+0x151c/0x1b34 [65731.260204] [T32454] x5c [65731.260227] [T32454] el1h_64_sync_handler+0x54/0x90 [65731.260248] [T32454 ] el1h_64_sync+0x68/0x6c [65731.260269] [T32454] z_erofs_decompress_queue+0x7f0/0x2258 --> be->decompressed_pages = kvcalloc(be->nr_pages, sizeof(struct page *), GFP_KERNEL | __GFP_NOFAIL); p\u00e1nico del kernel por desreferencia del puntero NULL. erofs supone que kvmalloc con __GFP_NOFAIL nunca devuelve NULL. [65731.260293] [T32454] z_erofs_runqueue+0xf30/0x104c [65731.260314] [T32454] z_erofs_readahead+0x4f0/0x968 [65731.260339] [T32454] c [65731.260364] [T32454] page_cache_ra_unbounded+0x874/0xf30 [65731.260388] [T32454] page_cache_ra_order+0x24c/0x714 [65731.260411] [T32454] filemap_fault+0xbf0/0x1a74 [65731.260437] [T32454] __do_fault+0xd0/0x33c [65731.260462] [T32454] mm_fault+0xf74/0x3fe0 [65731.260486] [T32454] do_mem_abort+0x54c/0x1b34 [ 65731.260509] [T32454] el0_da+0x44/0x94 [65731.260531] [T32454] el0t_64_sync_handler+0x98/0xb4 [65731.260553] [T32454] el0t_64_sync+0x198/0x19c"}], "id": "CVE-2024-39474", "lastModified": "2024-11-21T09:27:44.577", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "[email protected]", "type": "Primary"}]}, "published": "2024-07-05T07:15:10.190", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Mailing List", "Patch"], "url": "https://git.kernel.org/stable/c/198a80833e3421d4c9820a4ae907120adf598c91"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Mailing List", "Patch"], "url": "https://git.kernel.org/stable/c/758678b65164b2158fc1de411092191cb3c394d4"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Mailing List", "Patch"], "url": "https://git.kernel.org/stable/c/8e0545c83d672750632f46e3f9ad95c48c91a0fc"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Mailing List", "Patch"], "url": "https://git.kernel.org/stable/c/c55d3564ad25ce87ab7cc6af251f9574faebd8da"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Patch"], "url": "https://git.kernel.org/stable/c/198a80833e3421d4c9820a4ae907120adf598c91"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Patch"], "url": "https://git.kernel.org/stable/c/758678b65164b2158fc1de411092191cb3c394d4"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Patch"], "url": "https://git.kernel.org/stable/c/8e0545c83d672750632f46e3f9ad95c48c91a0fc"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Patch"], "url": "https://git.kernel.org/stable/c/c55d3564ad25ce87ab7cc6af251f9574faebd8da"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-770"}], "source": "[email protected]", "type": "Primary"}]}

{"affected_release": [{"advisory": "RHSA-2024:9315", "cpe": "cpe:/a:redhat:enterprise_linux:9", "package": "kernel-0:5.14.0-503.11.1.el9_5", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2024-11-12T00:00:00Z"}, {"advisory": "RHSA-2024:9315", "cpe": "cpe:/o:redhat:enterprise_linux:9", "package": "kernel-0:5.14.0-503.11.1.el9_5", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2024-11-12T00:00:00Z"}], "bugzilla": {"description": "kernel: mm/vmalloc: fix vmalloc which may return null if called with __GFP_NOFAIL", "id": "2296066", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2296066"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.7", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "verified"}, "cwe": "CWE-476", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nmm/vmalloc: fix vmalloc which may return null if called with __GFP_NOFAIL\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:\nprocess-a\n__vmalloc_node_range(GFP_KERNEL | __GFP_NOFAIL)\n__vmalloc_area_node()\nvm_area_alloc_pages()\n--> oom-killer send SIGKILL to process-a\nif (fatal_signal_pending(current)) break;\n--> return NULL;\nTo fix this, do not check fatal_signal_pending() in vm_area_alloc_pages()\nif __GFP_NOFAIL set.\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[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[65731.260269] [T32454] z_erofs_decompress_queue+0x7f0/0x2258\n--> be->decompressed_pages = kvcalloc(be->nr_pages, sizeof(struct page *), GFP_KERNEL | __GFP_NOFAIL);\nkernel panic by NULL pointer dereference.\nerofs 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"], "name": "CVE-2024-39474", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-07-05T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-39474\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-39474\nhttps://lore.kernel.org/linux-cve-announce/2024070518-CVE-2024-39474-97cf@gregkh/T"], "threat_severity": "Low", "upstream_fix": "kernel 6.1.95, kernel 6.6.34, kernel 6.9.5, kernel 6.10-rc1"}