CVE-2022-49376
scsi: sd: Fix potential NULL pointer dereference
- Published
- Updated
- Reserved
- Assigned by
- Linux
Description
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().
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| CISA-ADPADP (enrichment) | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| NVDNVD · Modified | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.27% · top 81% of all CVEs (6 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Weakness
Affected products
- affected 89d9475610771b5e5fe1879075f0fc9ba6e3755f – < c1f0187025905e9981000d44a92e159468b561a8
- affected 89d9475610771b5e5fe1879075f0fc9ba6e3755f – < 0fcb0b131cc90c8f523a293d84c58d0c7273c96f
- affected 89d9475610771b5e5fe1879075f0fc9ba6e3755f – < 78f8e96df06e2d04d82d4071c299b59d28744f47
- affected 89d9475610771b5e5fe1879075f0fc9ba6e3755f – < 3733439593ad12f7b54ae35c273ea6f15d692de3
- affected 89d9475610771b5e5fe1879075f0fc9ba6e3755f – < 05fbde3a77a4f1d62e4c4428f384288c1f1a0be5
- affected 4.10
- unaffected < 4.10
- unaffected 5.10.122 – ≤ 5.10.*
- unaffected 5.15.47 – ≤ 5.15.*
- unaffected 5.17.15 – ≤ 5.17.*
- unaffected 5.18.4 – ≤ 5.18.*
- unaffected 5.19 – ≤ *
References (5)
- https://git.kernel.org/stable/c/c1f0187025905e9981000d44a92e159468b561a8 (opens in a new tab)
- https://git.kernel.org/stable/c/0fcb0b131cc90c8f523a293d84c58d0c7273c96f (opens in a new tab)
- https://git.kernel.org/stable/c/78f8e96df06e2d04d82d4071c299b59d28744f47 (opens in a new tab)
- https://git.kernel.org/stable/c/3733439593ad12f7b54ae35c273ea6f15d692de3 (opens in a new tab)
- https://git.kernel.org/stable/c/05fbde3a77a4f1d62e4c4428f384288c1f1a0be5 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2022-49376)Record last updated .