CVE Explorer

CVE-2026-64375

In the Linux kernel, the following vulnerability has been resolved: proc: protect ptrace_may_access() with exec_update_lock (FD links) proc_pid_get_link() and proc_pid_readlink() currently look up the task from the pid once, then do the ptrace access check on that task, then look up the task from the pid a second time to do the actual access. That's racy in several ways. To fix it, pass the task to the ->proc_get_link() handler, and instead of proc_fd_access_allowed(), introduce a new helper

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:c5d069e00ea1e4e76d35fbfdb3f2139d042af152e43f9088768045ed2bfd1e4c

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 2 assertions

{"defaultStatus":"unaffected","product":"Linux","programFiles":["fs/proc/base.c","fs/proc/fd.c","fs/proc/internal.h"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"6253dfee5afba536bb54fc6fe6c091c3758fafe1","status":"affected","version":"778c1144771f0064b6f51bee865cceb0d996f2f9","versionType":"git"},{"lessThan":"65bf0d2b6e914f1448d6a2fde193dcf60936a651","status":"affected","version":"778c1144771f0064b6f51bee865cceb0d996f2f9","versionType":"git"},{"lessThan":"de497d7aa2fae453a7e7c8f7d3e8682e565e3aaf","status":"affected","versi…

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:30b44182f9c92afafc1340a353bed55fcc87075d755b710e365a9a2ac300df64 · sha256:b413795c5345b0c9… · /containers/cna/affected/0

{"defaultStatus":"affected","product":"Linux","programFiles":["fs/proc/base.c","fs/proc/fd.c","fs/proc/internal.h"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"2.6.18"},{"lessThan":"2.6.18","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.261","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.212","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.178",…

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:30b44182f9c92afafc1340a353bed55fcc87075d755b710e365a9a2ac300df64 · sha256:b413795c5345b0c9… · /containers/cna/affected/1

Affected products and versions

2 source assertions

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:30b44182f9c92afafc1340a353bed55fcc87075d755b710e365a9a2ac300df64 · sha256:b413795c5345b0c9… · /containers/cna/affected/0

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:30b44182f9c92afafc1340a353bed55fcc87075d755b710e365a9a2ac300df64 · sha256:b413795c5345b0c9… · /containers/cna/affected/1

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:v2:30b44182f9c92afafc1340a353bed55fcc87075d755b710e365a9a2ac300df64 · sha256:b413795c5345b0c9… · /containers/cna/metrics/0/cvssV3_1

Source references

8 source assertions

{"url":"https://git.kernel.org/stable/c/138c692d2b2d63d26f2eb957d0e4fcc5d61f9ff2"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:30b44182f9c92afafc1340a353bed55fcc87075d755b710e365a9a2ac300df64 · sha256:b413795c5345b0c9… · /containers/cna/references/3

{"url":"https://git.kernel.org/stable/c/497c6bae5167428596575f20af6613ff5671f383"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:30b44182f9c92afafc1340a353bed55fcc87075d755b710e365a9a2ac300df64 · sha256:b413795c5345b0c9… · /containers/cna/references/5

{"url":"https://git.kernel.org/stable/c/6253dfee5afba536bb54fc6fe6c091c3758fafe1"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:30b44182f9c92afafc1340a353bed55fcc87075d755b710e365a9a2ac300df64 · sha256:b413795c5345b0c9… · /containers/cna/references/0

{"url":"https://git.kernel.org/stable/c/6255da28d4bb5349fe18e84cb043ccd394eba75d"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:30b44182f9c92afafc1340a353bed55fcc87075d755b710e365a9a2ac300df64 · sha256:b413795c5345b0c9… · /containers/cna/references/7

{"url":"https://git.kernel.org/stable/c/65bf0d2b6e914f1448d6a2fde193dcf60936a651"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:30b44182f9c92afafc1340a353bed55fcc87075d755b710e365a9a2ac300df64 · sha256:b413795c5345b0c9… · /containers/cna/references/1

{"url":"https://git.kernel.org/stable/c/83b17872e3166c295c599279fc9562ac3840c638"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:30b44182f9c92afafc1340a353bed55fcc87075d755b710e365a9a2ac300df64 · sha256:b413795c5345b0c9… · /containers/cna/references/4

{"url":"https://git.kernel.org/stable/c/de497d7aa2fae453a7e7c8f7d3e8682e565e3aaf"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:30b44182f9c92afafc1340a353bed55fcc87075d755b710e365a9a2ac300df64 · sha256:b413795c5345b0c9… · /containers/cna/references/2

{"url":"https://git.kernel.org/stable/c/dfd1894cb64cbd8758b461ed713800fe73db4f82"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:30b44182f9c92afafc1340a353bed55fcc87075d755b710e365a9a2ac300df64 · sha256:b413795c5345b0c9… · /containers/cna/references/6

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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