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CVE-2026-43364

In the Linux kernel, the following vulnerability has been resolved: ublk: fix NULL pointer dereference in ublk_ctrl_set_size() ublk_ctrl_set_size() unconditionally dereferences ub->ub_disk via set_capacity_and_notify() without checking if it is NULL. ub->ub_disk is NULL before UBLK_CMD_START_DEV completes (it is only assigned in ublk_ctrl_start_dev()) and after UBLK_CMD_STOP_DEV runs (ublk_detach_disk() sets it to NULL). Since the UBLK_CMD_UPDATE_SIZE handler performs no state validation, a u
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:dd8a59085129d39404ea1f6e6c080fc82a485b7de72b7a2ccb1d84e76771cede
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":"unaffected","product":"Linux","programFiles":["drivers/block/ublk_drv.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"f13fe6794726755a43090cb680c4c58cea6aa5f1","status":"affected","version":"98b995660bff011d8e00af03abd74ac7d1ac1390","versionType":"git"},{"lessThan":"c28d945bfa92e15147e93b73f95345b9bec979b0","status":"affected","version":"98b995660bff011d8e00af03abd74ac7d1ac1390","versionType":"git"},{"lessThan":"25966fc097691e5c925ad080f64a2f19c5fd940a","status":"affected","version":"98b995660bff011d8e00a…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:97fd04ceac1e02a2ebe1b3f0b9a9a10531df7645d551ac1188b0a5761be228c7 · sha256:45cf22f07cbc9a17… · /containers/cna/affected/0

{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/block/ublk_drv.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.16"},{"lessThan":"6.16","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.20","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.9","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.0","versionType":"original_commit_for_fix"}]…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:97fd04ceac1e02a2ebe1b3f0b9a9a10531df7645d551ac1188b0a5761be228c7 · sha256:45cf22f07cbc9a17… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/block/ublk_drv.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"f13fe6794726755a43090cb680c4c58cea6aa5f1","status":"affected","version":"98b995660bff011d8e00af03abd74ac7d1ac1390","versionType":"git"},{"lessThan":"c28d945bfa92e15147e93b73f95345b9bec979b0","status":"affected","version":"98b995660bff011d8e00af03abd74ac7d1ac1390","versionType":"git"},{"lessThan":"25966fc097691e5c925ad080f64a2f19c5fd940a","status":"affected","version":"98b995660bff011d8e00a…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:97fd04ceac1e02a2ebe1b3f0b9a9a10531df7645d551ac1188b0a5761be228c7 · sha256:45cf22f07cbc9a17… · /containers/cna/affected/0
{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/block/ublk_drv.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.16"},{"lessThan":"6.16","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.20","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.9","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.0","versionType":"original_commit_for_fix"}]…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:97fd04ceac1e02a2ebe1b3f0b9a9a10531df7645d551ac1188b0a5761be228c7 · sha256:45cf22f07cbc9a17… · /containers/cna/affected/1

Source references

3 source assertions
{"url":"https://git.kernel.org/stable/c/25966fc097691e5c925ad080f64a2f19c5fd940a"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:97fd04ceac1e02a2ebe1b3f0b9a9a10531df7645d551ac1188b0a5761be228c7 · sha256:45cf22f07cbc9a17… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/c28d945bfa92e15147e93b73f95345b9bec979b0"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:97fd04ceac1e02a2ebe1b3f0b9a9a10531df7645d551ac1188b0a5761be228c7 · sha256:45cf22f07cbc9a17… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/f13fe6794726755a43090cb680c4c58cea6aa5f1"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:97fd04ceac1e02a2ebe1b3f0b9a9a10531df7645d551ac1188b0a5761be228c7 · sha256:45cf22f07cbc9a17… · /containers/cna/references/0

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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