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CVE-2026-43271

In the Linux kernel, the following vulnerability has been resolved: md-cluster: fix NULL pointer dereference in process_metadata_update The function process_metadata_update() blindly dereferences the 'thread' pointer (acquired via rcu_dereference_protected) within the wait_event() macro. While the code comment states "daemon thread must exist", there is a valid race condition window during the MD array startup sequence (md_run): 1. bitmap_load() is called, which invokes md_cluster_ops->join(
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:c7db4b2c45d994116620a87fa41d8af166bcc33a6d93551582cab0f51829d0d8
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":["drivers/md/md-cluster.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"4.12"},{"lessThan":"4.12","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.128","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.75","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.16","versionType":"semver"},{"lessTha…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:5482b0abe8453cb36bf8693053894b14b8c24ed4b3dbc8f4d16373af507b2e9b · sha256:c973ef4b79c0dc3c… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/md/md-cluster.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"a61c1bc84c4a0f1e7c2fe55b0f43d7d94af4adf1","status":"affected","version":"0ba959774e93911caff596de6391f085fb640ac4","versionType":"git"},{"lessThan":"dec123825c1ed74d98fd5fc7571a851dea4f46ff","status":"affected","version":"0ba959774e93911caff596de6391f085fb640ac4","versionType":"git"},{"lessThan":"721599e837d3f4c0e6cc14da059612c017b6d3ec","status":"affected","version":"0ba959774e93911caff596…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:5482b0abe8453cb36bf8693053894b14b8c24ed4b3dbc8f4d16373af507b2e9b · sha256:c973ef4b79c0dc3c… · /containers/cna/affected/0

Affected products and versions

2 source assertions
{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/md/md-cluster.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"4.12"},{"lessThan":"4.12","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.128","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.75","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.16","versionType":"semver"},{"lessTha…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:5482b0abe8453cb36bf8693053894b14b8c24ed4b3dbc8f4d16373af507b2e9b · sha256:c973ef4b79c0dc3c… · /containers/cna/affected/1
{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/md/md-cluster.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"a61c1bc84c4a0f1e7c2fe55b0f43d7d94af4adf1","status":"affected","version":"0ba959774e93911caff596de6391f085fb640ac4","versionType":"git"},{"lessThan":"dec123825c1ed74d98fd5fc7571a851dea4f46ff","status":"affected","version":"0ba959774e93911caff596de6391f085fb640ac4","versionType":"git"},{"lessThan":"721599e837d3f4c0e6cc14da059612c017b6d3ec","status":"affected","version":"0ba959774e93911caff596…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:5482b0abe8453cb36bf8693053894b14b8c24ed4b3dbc8f4d16373af507b2e9b · sha256:c973ef4b79c0dc3c… · /containers/cna/affected/0

Source references

5 source assertions
{"url":"https://git.kernel.org/stable/c/721599e837d3f4c0e6cc14da059612c017b6d3ec"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:5482b0abe8453cb36bf8693053894b14b8c24ed4b3dbc8f4d16373af507b2e9b · sha256:c973ef4b79c0dc3c… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/a61c1bc84c4a0f1e7c2fe55b0f43d7d94af4adf1"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:5482b0abe8453cb36bf8693053894b14b8c24ed4b3dbc8f4d16373af507b2e9b · sha256:c973ef4b79c0dc3c… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/dceb5a843910004cb118148e267036104fc3ee43"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:5482b0abe8453cb36bf8693053894b14b8c24ed4b3dbc8f4d16373af507b2e9b · sha256:c973ef4b79c0dc3c… · /containers/cna/references/3
{"url":"https://git.kernel.org/stable/c/dec123825c1ed74d98fd5fc7571a851dea4f46ff"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:5482b0abe8453cb36bf8693053894b14b8c24ed4b3dbc8f4d16373af507b2e9b · sha256:c973ef4b79c0dc3c… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/f150e753cb8dd756085f46e86f2c35ce472e0a3c"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:5482b0abe8453cb36bf8693053894b14b8c24ed4b3dbc8f4d16373af507b2e9b · sha256:c973ef4b79c0dc3c… · /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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