Vulnerability-Lookup

GSD-2023-52562

Vulnerability from gsd - Updated: 2024-03-03 06:01

Details

In the Linux kernel, the following vulnerability has been resolved: mm/slab_common: fix slab_caches list corruption after kmem_cache_destroy() After the commit in Fixes:, if a module that created a slab cache does not release all of its allocated objects before destroying the cache (at rmmod time), we might end up releasing the kmem_cache object without removing it from the slab_caches list thus corrupting the list as kmem_cache_destroy() ignores the return value from shutdown_cache(), which in turn never removes the kmem_cache object from slabs_list in case __kmem_cache_shutdown() fails to release all of the cache's slabs. This is easily observable on a kernel built with CONFIG_DEBUG_LIST=y as after that ill release the system will immediately trip on list_add, or list_del, assertions similar to the one shown below as soon as another kmem_cache gets created, or destroyed: [ 1041.213632] list_del corruption. next->prev should be ffff89f596fb5768, but was 52f1e5016aeee75d. (next=ffff89f595a1b268) [ 1041.219165] ------------[ cut here ]------------ [ 1041.221517] kernel BUG at lib/list_debug.c:62! [ 1041.223452] invalid opcode: 0000 [#1] PREEMPT SMP PTI [ 1041.225408] CPU: 2 PID: 1852 Comm: rmmod Kdump: loaded Tainted: G B W OE 6.5.0 #15 [ 1041.228244] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS edk2-20230524-3.fc37 05/24/2023 [ 1041.231212] RIP: 0010:__list_del_entry_valid+0xae/0xb0 Another quick way to trigger this issue, in a kernel with CONFIG_SLUB=y, is to set slub_debug to poison the released objects and then just run cat /proc/slabinfo after removing the module that leaks slab objects, in which case the kernel will panic: [ 50.954843] general protection fault, probably for non-canonical address 0xa56b6b6b6b6b6b8b: 0000 [#1] PREEMPT SMP PTI [ 50.961545] CPU: 2 PID: 1495 Comm: cat Kdump: loaded Tainted: G B W OE 6.5.0 #15 [ 50.966808] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS edk2-20230524-3.fc37 05/24/2023 [ 50.972663] RIP: 0010:get_slabinfo+0x42/0xf0 This patch fixes this issue by properly checking shutdown_cache()'s return value before taking the kmem_cache_release() branch.

Aliases

CVE-2023-52562

JSON

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{
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
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      "aliases": [
        "CVE-2023-52562"
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      "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm/slab_common: fix slab_caches list corruption after kmem_cache_destroy()\n\nAfter the commit in Fixes:, if a module that created a slab cache does not\nrelease all of its allocated objects before destroying the cache (at rmmod\ntime), we might end up releasing the kmem_cache object without removing it\nfrom the slab_caches list thus corrupting the list as kmem_cache_destroy()\nignores the return value from shutdown_cache(), which in turn never removes\nthe kmem_cache object from slabs_list in case __kmem_cache_shutdown() fails\nto release all of the cache\u0027s slabs.\n\nThis is easily observable on a kernel built with CONFIG_DEBUG_LIST=y\nas after that ill release the system will immediately trip on list_add,\nor list_del, assertions similar to the one shown below as soon as another\nkmem_cache gets created, or destroyed:\n\n  [ 1041.213632] list_del corruption. next-\u003eprev should be ffff89f596fb5768, but was 52f1e5016aeee75d. (next=ffff89f595a1b268)\n  [ 1041.219165] ------------[ cut here ]------------\n  [ 1041.221517] kernel BUG at lib/list_debug.c:62!\n  [ 1041.223452] invalid opcode: 0000 [#1] PREEMPT SMP PTI\n  [ 1041.225408] CPU: 2 PID: 1852 Comm: rmmod Kdump: loaded Tainted: G    B   W  OE      6.5.0 #15\n  [ 1041.228244] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS edk2-20230524-3.fc37 05/24/2023\n  [ 1041.231212] RIP: 0010:__list_del_entry_valid+0xae/0xb0\n\nAnother quick way to trigger this issue, in a kernel with CONFIG_SLUB=y,\nis to set slub_debug to poison the released objects and then just run\ncat /proc/slabinfo after removing the module that leaks slab objects,\nin which case the kernel will panic:\n\n  [   50.954843] general protection fault, probably for non-canonical address 0xa56b6b6b6b6b6b8b: 0000 [#1] PREEMPT SMP PTI\n  [   50.961545] CPU: 2 PID: 1495 Comm: cat Kdump: loaded Tainted: G    B   W  OE      6.5.0 #15\n  [   50.966808] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS edk2-20230524-3.fc37 05/24/2023\n  [   50.972663] RIP: 0010:get_slabinfo+0x42/0xf0\n\nThis patch fixes this issue by properly checking shutdown_cache()\u0027s\nreturn value before taking the kmem_cache_release() branch.",
      "id": "GSD-2023-52562",
      "modified": "2024-03-03T06:01:51.764027Z",
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            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm/slab_common: fix slab_caches list corruption after kmem_cache_destroy()\n\nAfter the commit in Fixes:, if a module that created a slab cache does not\nrelease all of its allocated objects before destroying the cache (at rmmod\ntime), we might end up releasing the kmem_cache object without removing it\nfrom the slab_caches list thus corrupting the list as kmem_cache_destroy()\nignores the return value from shutdown_cache(), which in turn never removes\nthe kmem_cache object from slabs_list in case __kmem_cache_shutdown() fails\nto release all of the cache\u0027s slabs.\n\nThis is easily observable on a kernel built with CONFIG_DEBUG_LIST=y\nas after that ill release the system will immediately trip on list_add,\nor list_del, assertions similar to the one shown below as soon as another\nkmem_cache gets created, or destroyed:\n\n  [ 1041.213632] list_del corruption. next-\u003eprev should be ffff89f596fb5768, but was 52f1e5016aeee75d. (next=ffff89f595a1b268)\n  [ 1041.219165] ------------[ cut here ]------------\n  [ 1041.221517] kernel BUG at lib/list_debug.c:62!\n  [ 1041.223452] invalid opcode: 0000 [#1] PREEMPT SMP PTI\n  [ 1041.225408] CPU: 2 PID: 1852 Comm: rmmod Kdump: loaded Tainted: G    B   W  OE      6.5.0 #15\n  [ 1041.228244] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS edk2-20230524-3.fc37 05/24/2023\n  [ 1041.231212] RIP: 0010:__list_del_entry_valid+0xae/0xb0\n\nAnother quick way to trigger this issue, in a kernel with CONFIG_SLUB=y,\nis to set slub_debug to poison the released objects and then just run\ncat /proc/slabinfo after removing the module that leaks slab objects,\nin which case the kernel will panic:\n\n  [   50.954843] general protection fault, probably for non-canonical address 0xa56b6b6b6b6b6b8b: 0000 [#1] PREEMPT SMP PTI\n  [   50.961545] CPU: 2 PID: 1495 Comm: cat Kdump: loaded Tainted: G    B   W  OE      6.5.0 #15\n  [   50.966808] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS edk2-20230524-3.fc37 05/24/2023\n  [   50.972663] RIP: 0010:get_slabinfo+0x42/0xf0\n\nThis patch fixes this issue by properly checking shutdown_cache()\u0027s\nreturn value before taking the kmem_cache_release() branch."
          }
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        "id": "CVE-2023-52562",
        "lastModified": "2024-03-04T13:58:23.447",
        "metrics": {},
        "published": "2024-03-02T22:15:48.843",
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}

CVE-2023-52562 (GCVE-0-2023-52562)

Vulnerability from cvelistv5 – Published: 2024-03-02 21:59 – Updated: 2026-05-23 15:26

Title

mm/slab_common: fix slab_caches list corruption after kmem_cache_destroy()

Summary

Severity

No CVSS data available.

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-09-10 15:56 UTC

Assigner

Linux mitre root

References

3 references

URL	Tags
https://git.kernel.org/stable/c/a5569bb187521432f…
https://git.kernel.org/stable/c/51988be187b041e53…
https://git.kernel.org/stable/c/46a9ea6681907a3be…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 0495e337b7039191dfce6e03f5f830454b1fae6b , < a5569bb187521432f509b69dda7d29f78b2d38b0 (git) Affected: 0495e337b7039191dfce6e03f5f830454b1fae6b , < 51988be187b041e5355245957b0b9751fa382e0d (git) Affected: 0495e337b7039191dfce6e03f5f830454b1fae6b , < 46a9ea6681907a3be6b6b0d43776dccc62cad6cf (git) Affected: 357321557920c805de2b14832002465c320eea4f (git) Affected: 5.19.8 , < 5.20 (semver)
Linux	Linux	Affected: 6.0 Unaffected: 0 , < 6.0 (semver) Unaffected: 6.1.56 , ≤ 6.1.* (semver) Unaffected: 6.5.6 , ≤ 6.5.* (semver) Unaffected: 6.6 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

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        },
        {
          "url": "https://git.kernel.org/stable/c/51988be187b041e5355245957b0b9751fa382e0d"
        },
        {
          "url": "https://git.kernel.org/stable/c/46a9ea6681907a3be6b6b0d43776dccc62cad6cf"
        }
      ],
      "title": "mm/slab_common: fix slab_caches list corruption after kmem_cache_destroy()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2023-52562",
    "datePublished": "2024-03-02T21:59:35.568Z",
    "dateReserved": "2024-03-02T21:55:42.566Z",
    "dateUpdated": "2026-05-23T15:26:04.021Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.