CVE-2022-49376 (GCVE-0-2022-49376)

Vulnerability from cvelistv5 – Published: 2025-02-26 02:11 – Updated: 2025-10-01 19:46
VLAI?
Title
scsi: sd: Fix potential NULL pointer dereference
Summary
In the Linux kernel, the following vulnerability has been resolved: scsi: sd: Fix potential NULL pointer dereference If sd_probe() sees an early error before sdkp->device is initialized, sd_zbc_release_disk() is called. This causes a NULL pointer dereference when sd_is_zoned() is called inside that function. Avoid this by removing the call to sd_zbc_release_disk() in sd_probe() error path. This change is safe and does not result in zone information memory leakage because the zone information for a zoned disk is allocated only when sd_revalidate_disk() is called, at which point sdkp->disk_dev is fully set, resulting in sd_disk_release() being called when needed to cleanup a disk zone information using sd_zbc_release_disk().
Severity ?
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-476 - NULL Pointer Dereference
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 89d9475610771b5e5fe1879075f0fc9ba6e3755f , < c1f0187025905e9981000d44a92e159468b561a8 (git)
Affected: 89d9475610771b5e5fe1879075f0fc9ba6e3755f , < 0fcb0b131cc90c8f523a293d84c58d0c7273c96f (git)
Affected: 89d9475610771b5e5fe1879075f0fc9ba6e3755f , < 78f8e96df06e2d04d82d4071c299b59d28744f47 (git)
Affected: 89d9475610771b5e5fe1879075f0fc9ba6e3755f , < 3733439593ad12f7b54ae35c273ea6f15d692de3 (git)
Affected: 89d9475610771b5e5fe1879075f0fc9ba6e3755f , < 05fbde3a77a4f1d62e4c4428f384288c1f1a0be5 (git)
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    Linux Linux Affected: 4.10
Unaffected: 0 , < 4.10 (semver)
Unaffected: 5.10.122 , ≤ 5.10.* (semver)
Unaffected: 5.15.47 , ≤ 5.15.* (semver)
Unaffected: 5.17.15 , ≤ 5.17.* (semver)
Unaffected: 5.18.4 , ≤ 5.18.* (semver)
Unaffected: 5.19 , ≤ * (original_commit_for_fix)
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Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.