CVE Explorer

CVE-2026-46242

In the Linux kernel, the following vulnerability has been resolved: eventpoll: fix ep_remove struct eventpoll / struct file UAF ep_remove() (via ep_remove_file()) cleared file->f_ep under file->f_lock but then kept using @file inside the critical section (is_file_epoll(), hlist_del_rcu() through the head, spin_unlock). A concurrent __fput() taking the eventpoll_release() fastpath in that window observed the transient NULL, skipped eventpoll_release_file() and ran to f_op->release / file_free()

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:0e8652755a93710891f6fa895cbf2a933bb715b529bdfdef29984a8d18420287

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":["fs/eventpoll.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.4"},{"lessThan":"6.4","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.178","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.144","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.95","versionType":"semver"},{"lessThanOrEqual":"6…

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:96777c0fe12b16bc6a50cd0655b9baf14257f92b8ca6f0de9eec13d94a4bcc0e · sha256:fd40578517a22bfb… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"Linux","programFiles":["fs/eventpoll.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"3e1144d2515d28e4312e663ea05eac203101491d","status":"affected","version":"a1f93804449d13f97dabd4b996817de4bf1ed67a","versionType":"git"},{"lessThan":"2de4db145b2992da496fea6c51f9839be678ae24","status":"affected","version":"58c9b016e12855286370dfb704c08498edbc857a","versionType":"git"},{"lessThan":"9324de74a3a59b9fde9b62ee45ebaa71458ba2e5","status":"affected","version":"58c9b016e12855286370dfb704c0849…

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:96777c0fe12b16bc6a50cd0655b9baf14257f92b8ca6f0de9eec13d94a4bcc0e · sha256:fd40578517a22bfb… · /containers/cna/affected/0

Affected products and versions

2 source assertions

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:96777c0fe12b16bc6a50cd0655b9baf14257f92b8ca6f0de9eec13d94a4bcc0e · sha256:fd40578517a22bfb… · /containers/cna/affected/1

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:96777c0fe12b16bc6a50cd0655b9baf14257f92b8ca6f0de9eec13d94a4bcc0e · sha256:fd40578517a22bfb… · /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:v2:96777c0fe12b16bc6a50cd0655b9baf14257f92b8ca6f0de9eec13d94a4bcc0e · sha256:fd40578517a22bfb… · /containers/cna/metrics/0/cvssV3_1

Source references

7 source assertions

{"url":"http://www.openwall.com/lists/oss-security/2026/07/08/14"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:96777c0fe12b16bc6a50cd0655b9baf14257f92b8ca6f0de9eec13d94a4bcc0e · sha256:fd40578517a22bfb… · /containers/adp/0/references/0

{"url":"https://git.kernel.org/stable/c/2de4db145b2992da496fea6c51f9839be678ae24"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:96777c0fe12b16bc6a50cd0655b9baf14257f92b8ca6f0de9eec13d94a4bcc0e · sha256:fd40578517a22bfb… · /containers/cna/references/1

{"url":"https://git.kernel.org/stable/c/3e1144d2515d28e4312e663ea05eac203101491d"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:96777c0fe12b16bc6a50cd0655b9baf14257f92b8ca6f0de9eec13d94a4bcc0e · sha256:fd40578517a22bfb… · /containers/cna/references/0

{"url":"https://git.kernel.org/stable/c/9324de74a3a59b9fde9b62ee45ebaa71458ba2e5"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:96777c0fe12b16bc6a50cd0655b9baf14257f92b8ca6f0de9eec13d94a4bcc0e · sha256:fd40578517a22bfb… · /containers/cna/references/2

{"url":"https://git.kernel.org/stable/c/a6dc643c69311677c574a0f17a3f4d66a5f3744b"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:96777c0fe12b16bc6a50cd0655b9baf14257f92b8ca6f0de9eec13d94a4bcc0e · sha256:fd40578517a22bfb… · /containers/cna/references/5

{"url":"https://git.kernel.org/stable/c/ced39b6a8062bac5c18a1c3df85634107eb8664a"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:96777c0fe12b16bc6a50cd0655b9baf14257f92b8ca6f0de9eec13d94a4bcc0e · sha256:fd40578517a22bfb… · /containers/cna/references/4

{"url":"https://git.kernel.org/stable/c/ef4ca02e95363e78977ca04340d44fe3b4b2b81f"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:96777c0fe12b16bc6a50cd0655b9baf14257f92b8ca6f0de9eec13d94a4bcc0e · sha256:fd40578517a22bfb… · /containers/cna/references/3

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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