CVE Explorer

CVE-2026-43376

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free by using call_rcu() for oplock_info ksmbd currently frees oplock_info immediately using kfree(), even though it is accessed under RCU read-side critical sections in places like opinfo_get() and proc_show_files(). Since there is no RCU grace period delay between nullifying the pointer and freeing the memory, a reader can still access oplock_info structure after it has been freed. This can leads to a u

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:9fdbca2fb3c83d268649a458aa4a9f0c12cd728e1ba29c25c3a0d0127abd0734

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/smb/server/oplock.c","fs/smb/server/oplock.h"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.15"},{"lessThan":"6.15","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.130","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.78","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.19","versionT…

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:fbc08c93e0e5a911f188188c8d4d1705490ad740965e8b5805b5ce2f4a276550 · sha256:0d5a934b1918c1df… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"Linux","programFiles":["fs/smb/server/oplock.c","fs/smb/server/oplock.h"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"302fef75512b2c8329a3f5efab1ae7ba2562387a","status":"affected","version":"296cb5457cc6f4a754c4ae29855f8a253d52bcc6","versionType":"git"},{"lessThan":"08aa9f3c8cf4d0bee44df540dfe34e8d64069f2c","status":"affected","version":"d54ab1520d43e95f9b2e22d7a05fc9614192e5a5","versionType":"git"},{"lessThan":"1d6abf145615dbfe267ce3b0a271f95e3780e18e","status":"affected","version"…

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:fbc08c93e0e5a911f188188c8d4d1705490ad740965e8b5805b5ce2f4a276550 · sha256:0d5a934b1918c1df… · /containers/cna/affected/0

Affected products and versions

2 source assertions

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:fbc08c93e0e5a911f188188c8d4d1705490ad740965e8b5805b5ce2f4a276550 · sha256:0d5a934b1918c1df… · /containers/cna/affected/1

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:fbc08c93e0e5a911f188188c8d4d1705490ad740965e8b5805b5ce2f4a276550 · sha256:0d5a934b1918c1df… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"baseScore":9.8,"baseSeverity":"CRITICAL","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/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:fbc08c93e0e5a911f188188c8d4d1705490ad740965e8b5805b5ce2f4a276550 · sha256:0d5a934b1918c1df… · /containers/cna/metrics/0/cvssV3_1

Source references

5 source assertions

{"url":"https://git.kernel.org/stable/c/08aa9f3c8cf4d0bee44df540dfe34e8d64069f2c"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:fbc08c93e0e5a911f188188c8d4d1705490ad740965e8b5805b5ce2f4a276550 · sha256:0d5a934b1918c1df… · /containers/cna/references/1

{"url":"https://git.kernel.org/stable/c/1d6abf145615dbfe267ce3b0a271f95e3780e18e"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:fbc08c93e0e5a911f188188c8d4d1705490ad740965e8b5805b5ce2f4a276550 · sha256:0d5a934b1918c1df… · /containers/cna/references/2

{"url":"https://git.kernel.org/stable/c/1dfd062caa165ec9d7ee0823087930f3ab8a6294"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:fbc08c93e0e5a911f188188c8d4d1705490ad740965e8b5805b5ce2f4a276550 · sha256:0d5a934b1918c1df… · /containers/cna/references/4

{"url":"https://git.kernel.org/stable/c/302fef75512b2c8329a3f5efab1ae7ba2562387a"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:fbc08c93e0e5a911f188188c8d4d1705490ad740965e8b5805b5ce2f4a276550 · sha256:0d5a934b1918c1df… · /containers/cna/references/0

{"url":"https://git.kernel.org/stable/c/ce8507ee82c888126d8e7565e27c016308d24cde"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:fbc08c93e0e5a911f188188c8d4d1705490ad740965e8b5805b5ce2f4a276550 · sha256:0d5a934b1918c1df… · /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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