CVE Explorer

CVE-2026-53160

In the Linux kernel, the following vulnerability has been resolved: misc: fastrpc: fix use-after-free race in fastrpc_map_create fastrpc_map_lookup returns a raw pointer after releasing fl->lock. The caller fastrpc_map_create then calls fastrpc_map_get (kref_get_unless_zero) on this unprotected pointer. A concurrent MEM_UNMAP can free the map between the lock release and the kref operation, resulting in a use-after-free on the freed slab object. Restore the take_ref parameter to fastrpc_map_l

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:22e184ec74f8abb8294d157db69c1bc4c717adc2099ad0ffe746fd0ca96d3545

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 2 assertions

{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/misc/fastrpc.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.18"},{"lessThan":"6.18","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.176","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.143","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.94","versionType":"semver"},{"lessThanO…

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:105cd111522db9039cfafc3411f649ea3882fc2887570df5f1839f68e6e1d004 · sha256:5af6e143ddcb3726… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/misc/fastrpc.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"0a3b87293fbd34fda651e6aead9964f84b893962","status":"affected","version":"0b70ec82b309a4093106ff399da1911ad23b52d3","versionType":"git"},{"lessThan":"8b080c89183196fd3e49212f2a1a1c4a29335b9c","status":"affected","version":"d7513b47082c08105e837b06cebeb3f07a5fa56f","versionType":"git"},{"lessThan":"5b0166112019d1dce30b976ab28fd67f7f0be532","status":"affected","version":"802359a52676176b18713e3…

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:105cd111522db9039cfafc3411f649ea3882fc2887570df5f1839f68e6e1d004 · sha256:5af6e143ddcb3726… · /containers/cna/affected/0

Affected products and versions

2 source assertions

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:105cd111522db9039cfafc3411f649ea3882fc2887570df5f1839f68e6e1d004 · sha256:5af6e143ddcb3726… · /containers/cna/affected/1

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:105cd111522db9039cfafc3411f649ea3882fc2887570df5f1839f68e6e1d004 · sha256:5af6e143ddcb3726… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"baseScore":7.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:105cd111522db9039cfafc3411f649ea3882fc2887570df5f1839f68e6e1d004 · sha256:5af6e143ddcb3726… · /containers/cna/metrics/0/cvssV3_1

Source references

6 source assertions

{"url":"https://git.kernel.org/stable/c/07ebe87915d8accdaba20c4f88c5ae430fe62fbb"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:105cd111522db9039cfafc3411f649ea3882fc2887570df5f1839f68e6e1d004 · sha256:5af6e143ddcb3726… · /containers/cna/references/5

{"url":"https://git.kernel.org/stable/c/0a3b87293fbd34fda651e6aead9964f84b893962"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:105cd111522db9039cfafc3411f649ea3882fc2887570df5f1839f68e6e1d004 · sha256:5af6e143ddcb3726… · /containers/cna/references/0

{"url":"https://git.kernel.org/stable/c/5b0166112019d1dce30b976ab28fd67f7f0be532"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:105cd111522db9039cfafc3411f649ea3882fc2887570df5f1839f68e6e1d004 · sha256:5af6e143ddcb3726… · /containers/cna/references/2

{"url":"https://git.kernel.org/stable/c/8b080c89183196fd3e49212f2a1a1c4a29335b9c"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:105cd111522db9039cfafc3411f649ea3882fc2887570df5f1839f68e6e1d004 · sha256:5af6e143ddcb3726… · /containers/cna/references/1

{"url":"https://git.kernel.org/stable/c/992f121796b7ca83a5a8b93da24e971363206218"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:105cd111522db9039cfafc3411f649ea3882fc2887570df5f1839f68e6e1d004 · sha256:5af6e143ddcb3726… · /containers/cna/references/3

{"url":"https://git.kernel.org/stable/c/f20f6512ecb75c816e0debf4551a138f098615c4"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:105cd111522db9039cfafc3411f649ea3882fc2887570df5f1839f68e6e1d004 · sha256:5af6e143ddcb3726… · /containers/cna/references/4

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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