CVE-2024-53097 (GCVE-0-2024-53097)

Vulnerability from cvelistv5 – Published: 2024-11-25 21:21 – Updated: 2025-11-03 22:29
VLAI?
Title
mm: krealloc: Fix MTE false alarm in __do_krealloc
Summary
In the Linux kernel, the following vulnerability has been resolved: mm: krealloc: Fix MTE false alarm in __do_krealloc This patch addresses an issue introduced by commit 1a83a716ec233 ("mm: krealloc: consider spare memory for __GFP_ZERO") which causes MTE (Memory Tagging Extension) to falsely report a slab-out-of-bounds error. The problem occurs when zeroing out spare memory in __do_krealloc. The original code only considered software-based KASAN and did not account for MTE. It does not reset the KASAN tag before calling memset, leading to a mismatch between the pointer tag and the memory tag, resulting in a false positive. Example of the error: ================================================================== swapper/0: BUG: KASAN: slab-out-of-bounds in __memset+0x84/0x188 swapper/0: Write at addr f4ffff8005f0fdf0 by task swapper/0/1 swapper/0: Pointer tag: [f4], memory tag: [fe] swapper/0: swapper/0: CPU: 4 UID: 0 PID: 1 Comm: swapper/0 Not tainted 6.12. swapper/0: Hardware name: MT6991(ENG) (DT) swapper/0: Call trace: swapper/0: dump_backtrace+0xfc/0x17c swapper/0: show_stack+0x18/0x28 swapper/0: dump_stack_lvl+0x40/0xa0 swapper/0: print_report+0x1b8/0x71c swapper/0: kasan_report+0xec/0x14c swapper/0: __do_kernel_fault+0x60/0x29c swapper/0: do_bad_area+0x30/0xdc swapper/0: do_tag_check_fault+0x20/0x34 swapper/0: do_mem_abort+0x58/0x104 swapper/0: el1_abort+0x3c/0x5c swapper/0: el1h_64_sync_handler+0x80/0xcc swapper/0: el1h_64_sync+0x68/0x6c swapper/0: __memset+0x84/0x188 swapper/0: btf_populate_kfunc_set+0x280/0x3d8 swapper/0: __register_btf_kfunc_id_set+0x43c/0x468 swapper/0: register_btf_kfunc_id_set+0x48/0x60 swapper/0: register_nf_nat_bpf+0x1c/0x40 swapper/0: nf_nat_init+0xc0/0x128 swapper/0: do_one_initcall+0x184/0x464 swapper/0: do_initcall_level+0xdc/0x1b0 swapper/0: do_initcalls+0x70/0xc0 swapper/0: do_basic_setup+0x1c/0x28 swapper/0: kernel_init_freeable+0x144/0x1b8 swapper/0: kernel_init+0x20/0x1a8 swapper/0: ret_from_fork+0x10/0x20 ==================================================================
Severity ?
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: c383263ee82a01a5a9bc1a466025ccde39a38cae , < 8ebee7565effdeae6085458f8f8463363120a871 (git)
Affected: a543785856249a5ba8c20468098601c0c33b1224 , < d02492863023431c31f85d570f718433c22b9311 (git)
Affected: 44f79667fefd52945a44d2a57a2cd3c554d7f4e0 , < d43f1430d47c22a0727c05b6f156ed25fecdfeb4 (git)
Affected: f8767d10bcbc2529540eb906906c0058e15cd918 , < 486aeb5f1855c75dd810c25036134961bd2a6722 (git)
Affected: e3a9fc1520a6606c6121aca8d6679c6b93de7fd8 , < 71548fada7ee0eb50cc6ccda82dff010c745f92c (git)
Affected: 3e9a65a38706866bf93e19f5b4936465188add10 , < 3dfb40da84f26dd35dd9bbaf626a2424565b8406 (git)
Affected: 1a83a716ec233990e1fd5b6fbb1200ade63bf450 , < 704573851b51808b45dae2d62059d1d8189138a2 (git)
Affected: 73388659ef0eea51747350530afdeadf8809ce9c (git)
Create a notification for this product.
    Linux Linux Affected: 5.10.227 , < 5.10.230 (semver)
Affected: 5.15.168 , < 5.15.173 (semver)
Affected: 6.1.113 , < 6.1.118 (semver)
Affected: 6.6.55 , < 6.6.62 (semver)
Affected: 6.11.3 , < 6.11.9 (semver)
Create a notification for this product.
Show details on NVD website
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Tagging Extension) to falsely report a slab-out-of-bounds error.\\n\\nThe problem occurs when zeroing out spare memory in __do_krealloc. The\\noriginal code only considered software-based KASAN and did not account\\nfor MTE. It does not reset the KASAN tag before calling memset, leading\\nto a mismatch between the pointer tag and the memory tag, resulting\\nin a false positive.\\n\\nExample of the error:\\n==================================================================\\nswapper/0: BUG: KASAN: slab-out-of-bounds in __memset+0x84/0x188\\nswapper/0: Write at addr f4ffff8005f0fdf0 by task swapper/0/1\\nswapper/0: Pointer tag: [f4], memory tag: [fe]\\nswapper/0:\\nswapper/0: CPU: 4 UID: 0 PID: 1 Comm: swapper/0 Not tainted 6.12.\\nswapper/0: Hardware name: MT6991(ENG) (DT)\\nswapper/0: Call trace:\\nswapper/0:  dump_backtrace+0xfc/0x17c\\nswapper/0:  show_stack+0x18/0x28\\nswapper/0:  dump_stack_lvl+0x40/0xa0\\nswapper/0:  print_report+0x1b8/0x71c\\nswapper/0:  kasan_report+0xec/0x14c\\nswapper/0:  __do_kernel_fault+0x60/0x29c\\nswapper/0:  do_bad_area+0x30/0xdc\\nswapper/0:  do_tag_check_fault+0x20/0x34\\nswapper/0:  do_mem_abort+0x58/0x104\\nswapper/0:  el1_abort+0x3c/0x5c\\nswapper/0:  el1h_64_sync_handler+0x80/0xcc\\nswapper/0:  el1h_64_sync+0x68/0x6c\\nswapper/0:  __memset+0x84/0x188\\nswapper/0:  btf_populate_kfunc_set+0x280/0x3d8\\nswapper/0:  __register_btf_kfunc_id_set+0x43c/0x468\\nswapper/0:  register_btf_kfunc_id_set+0x48/0x60\\nswapper/0:  register_nf_nat_bpf+0x1c/0x40\\nswapper/0:  nf_nat_init+0xc0/0x128\\nswapper/0:  do_one_initcall+0x184/0x464\\nswapper/0:  do_initcall_level+0xdc/0x1b0\\nswapper/0:  do_initcalls+0x70/0xc0\\nswapper/0:  do_basic_setup+0x1c/0x28\\nswapper/0:  kernel_init_freeable+0x144/0x1b8\\nswapper/0:  kernel_init+0x20/0x1a8\\nswapper/0:  ret_from_fork+0x10/0x20\\n==================================================================\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.230\", \"versionStartIncluding\": \"5.10.227\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.173\", \"versionStartIncluding\": \"5.15.168\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.118\", \"versionStartIncluding\": \"6.1.113\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.62\", \"versionStartIncluding\": \"6.6.55\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.11.9\", \"versionStartIncluding\": \"6.11.3\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionStartIncluding\": \"6.10.14\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-05-04T13:00:20.163Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-53097\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-11-03T22:29:11.139Z\", \"dateReserved\": \"2024-11-19T17:17:24.983Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-11-25T21:21:26.549Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


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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.