CVE-2024-39474 (GCVE-0-2024-39474)

Vulnerability from cvelistv5 – Published: 2024-07-05 06:55 – Updated: 2025-11-03 21:56
VLAI?
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: mm/vmalloc: fix vmalloc which may return null if called with __GFP_NOFAIL commit a421ef303008 ("mm: allow !GFP_KERNEL allocations for kvmalloc") includes support for __GFP_NOFAIL, but it presents a conflict with commit dd544141b9eb ("vmalloc: back off when the current task is OOM-killed"). A possible scenario is as follows: process-a __vmalloc_node_range(GFP_KERNEL | __GFP_NOFAIL) __vmalloc_area_node() vm_area_alloc_pages() --> oom-killer send SIGKILL to process-a if (fatal_signal_pending(current)) break; --> return NULL; To fix this, do not check fatal_signal_pending() in vm_area_alloc_pages() if __GFP_NOFAIL set. This issue occurred during OPLUS KASAN TEST. Below is part of the log -> oom-killer sends signal to process [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] Call trace: [65731.259698] [T32454] dump_backtrace+0xf4/0x118 [65731.259734] [T32454] show_stack+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] die_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] el1_abort+0x3c/0x5c [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); kernel panic by NULL pointer dereference. erofs assume kvmalloc with __GFP_NOFAIL never return NULL. [65731.260293] [T32454] z_erofs_runqueue+0xf30/0x104c [65731.260314] [T32454] z_erofs_readahead+0x4f0/0x968 [65731.260339] [T32454] read_pages+0x170/0xadc [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] handle_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
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 9376130c390a76fac2788a5d6e1a149017b4ab50 , < 198a80833e3421d4c9820a4ae907120adf598c91 (git)
Affected: 9376130c390a76fac2788a5d6e1a149017b4ab50 , < c55d3564ad25ce87ab7cc6af251f9574faebd8da (git)
Affected: 9376130c390a76fac2788a5d6e1a149017b4ab50 , < 758678b65164b2158fc1de411092191cb3c394d4 (git)
Affected: 9376130c390a76fac2788a5d6e1a149017b4ab50 , < 8e0545c83d672750632f46e3f9ad95c48c91a0fc (git)
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    Linux Linux Affected: 5.17
Unaffected: 0 , < 5.17 (semver)
Unaffected: 6.1.95 , ≤ 6.1.* (semver)
Unaffected: 6.6.34 , ≤ 6.6.* (semver)
Unaffected: 6.9.5 , ≤ 6.9.* (semver)
Unaffected: 6.10 , ≤ * (original_commit_for_fix)
Create a notification for this product.
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      "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--\u003e oom-killer send SIGKILL to process-a\\n        if (fatal_signal_pending(current)) break;\\n--\u003e 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-\u003e 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--\u003e be-\u003edecompressed_pages = kvcalloc(be-\u003enr_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\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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Sightings

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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.