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CVE-2026-23177

In the Linux kernel, the following vulnerability has been resolved: mm, shmem: prevent infinite loop on truncate race When truncating a large swap entry, shmem_free_swap() returns 0 when the entry's index doesn't match the given index due to lookup alignment. The failure fallback path checks if the entry crosses the end border and aborts when it happens, so truncate won't erase an unexpected entry or range. But one scenario was ignored. When `index` points to the middle of a large swap entr
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:bd8f03097d075f454931c2e493c8e9f555324a1f8a2c104686b5b1a461372fdc
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 2 assertions

{"defaultStatus":"affected","product":"Linux","programFiles":["mm/shmem.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.12"},{"lessThan":"6.12","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.70","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.10","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"6.19","versionType":"original_commit_for_fix"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:7eae1704a2094737be4f987abdf032ef213ac9c32d63a36c03d96b4cd629492c · sha256:740e732c28a04da2… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"Linux","programFiles":["mm/shmem.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"dfc3ab6bd64860f8022d69903be299d09be86e11","status":"affected","version":"809bc86517cc408b5b8cb8e08e69096639432bc8","versionType":"git"},{"lessThan":"7b6a0f121d50234aab3e7ab9a62ebe826d40a32a","status":"affected","version":"809bc86517cc408b5b8cb8e08e69096639432bc8","versionType":"git"},{"lessThan":"2030dddf95451b4e7a389f052091e7c4b7b274c6","status":"affected","version":"809bc86517cc408b5b8cb8e08e690966394…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:7eae1704a2094737be4f987abdf032ef213ac9c32d63a36c03d96b4cd629492c · sha256:740e732c28a04da2… · /containers/cna/affected/0

Affected products and versions

2 source assertions
{"defaultStatus":"affected","product":"Linux","programFiles":["mm/shmem.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.12"},{"lessThan":"6.12","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.70","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.10","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"6.19","versionType":"original_commit_for_fix"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:7eae1704a2094737be4f987abdf032ef213ac9c32d63a36c03d96b4cd629492c · sha256:740e732c28a04da2… · /containers/cna/affected/1
{"defaultStatus":"unaffected","product":"Linux","programFiles":["mm/shmem.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"dfc3ab6bd64860f8022d69903be299d09be86e11","status":"affected","version":"809bc86517cc408b5b8cb8e08e69096639432bc8","versionType":"git"},{"lessThan":"7b6a0f121d50234aab3e7ab9a62ebe826d40a32a","status":"affected","version":"809bc86517cc408b5b8cb8e08e69096639432bc8","versionType":"git"},{"lessThan":"2030dddf95451b4e7a389f052091e7c4b7b274c6","status":"affected","version":"809bc86517cc408b5b8cb8e08e690966394…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:7eae1704a2094737be4f987abdf032ef213ac9c32d63a36c03d96b4cd629492c · sha256:740e732c28a04da2… · /containers/cna/affected/0

Source references

3 source assertions
{"url":"https://git.kernel.org/stable/c/2030dddf95451b4e7a389f052091e7c4b7b274c6"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:7eae1704a2094737be4f987abdf032ef213ac9c32d63a36c03d96b4cd629492c · sha256:740e732c28a04da2… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/7b6a0f121d50234aab3e7ab9a62ebe826d40a32a"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:7eae1704a2094737be4f987abdf032ef213ac9c32d63a36c03d96b4cd629492c · sha256:740e732c28a04da2… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/dfc3ab6bd64860f8022d69903be299d09be86e11"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:7eae1704a2094737be4f987abdf032ef213ac9c32d63a36c03d96b4cd629492c · sha256:740e732c28a04da2… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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