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CVE-2026-31420

In the Linux kernel, the following vulnerability has been resolved: bridge: mrp: reject zero test interval to avoid OOM panic br_mrp_start_test() and br_mrp_start_in_test() accept the user-supplied interval value from netlink without validation. When interval is 0, usecs_to_jiffies(0) yields 0, causing the delayed work (br_mrp_test_work_expired / br_mrp_in_test_work_expired) to reschedule itself with zero delay. This creates a tight loop on system_percpu_wq that allocates and transmits MRP tes
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:5b5064e0108612dfbb9e224264013f95d06d55c28f84145124421be6b4b71a1d
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":["net/bridge/br_mrp_netlink.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.8"},{"lessThan":"5.8","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.92","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.34","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.12","versionType":"semver"},{"less…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:04a2c5ac3925479860b6e3076ec6128a962798b876fda430afc5673f9c01ddfe · sha256:1dfbdf870a625a0e… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/bridge/br_mrp_netlink.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"630a15a31c2034b5b697f4aabc769b9d80d82446","status":"affected","version":"20f6a05ef63594feb0c6dfbd629da0448b43124d","versionType":"git"},{"lessThan":"e8ec80430bfa520e7352155d6ac632e527cba7aa","status":"affected","version":"20f6a05ef63594feb0c6dfbd629da0448b43124d","versionType":"git"},{"lessThan":"c9bc352f716d1bebfe43354bce539ec2d0223b30","status":"affected","version":"20f6a05ef63594feb0…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:04a2c5ac3925479860b6e3076ec6128a962798b876fda430afc5673f9c01ddfe · sha256:1dfbdf870a625a0e… · /containers/cna/affected/0

Affected products and versions

2 source assertions
{"defaultStatus":"affected","product":"Linux","programFiles":["net/bridge/br_mrp_netlink.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.8"},{"lessThan":"5.8","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.92","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.34","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.12","versionType":"semver"},{"less…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:04a2c5ac3925479860b6e3076ec6128a962798b876fda430afc5673f9c01ddfe · sha256:1dfbdf870a625a0e… · /containers/cna/affected/1
{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/bridge/br_mrp_netlink.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"630a15a31c2034b5b697f4aabc769b9d80d82446","status":"affected","version":"20f6a05ef63594feb0c6dfbd629da0448b43124d","versionType":"git"},{"lessThan":"e8ec80430bfa520e7352155d6ac632e527cba7aa","status":"affected","version":"20f6a05ef63594feb0c6dfbd629da0448b43124d","versionType":"git"},{"lessThan":"c9bc352f716d1bebfe43354bce539ec2d0223b30","status":"affected","version":"20f6a05ef63594feb0…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:04a2c5ac3925479860b6e3076ec6128a962798b876fda430afc5673f9c01ddfe · sha256:1dfbdf870a625a0e… · /containers/cna/affected/0

Source references

4 source assertions
{"url":"https://git.kernel.org/stable/c/630a15a31c2034b5b697f4aabc769b9d80d82446"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:04a2c5ac3925479860b6e3076ec6128a962798b876fda430afc5673f9c01ddfe · sha256:1dfbdf870a625a0e… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/c9bc352f716d1bebfe43354bce539ec2d0223b30"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:04a2c5ac3925479860b6e3076ec6128a962798b876fda430afc5673f9c01ddfe · sha256:1dfbdf870a625a0e… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/e8ec80430bfa520e7352155d6ac632e527cba7aa"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:04a2c5ac3925479860b6e3076ec6128a962798b876fda430afc5673f9c01ddfe · sha256:1dfbdf870a625a0e… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/fa6e24963342de4370e3a3c9af41e38277b74cf3"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:04a2c5ac3925479860b6e3076ec6128a962798b876fda430afc5673f9c01ddfe · sha256:1dfbdf870a625a0e… · /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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