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().
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
89d9475610771b5e5fe1879075f0fc9ba6e3755f to < c1f0187025905e9981000d44a92e159468b561a8affected89d9475610771b5e5fe1879075f0fc9ba6e3755f to < 0fcb0b131cc90c8f523a293d84c58d0c7273c96faffected89d9475610771b5e5fe1879075f0fc9ba6e3755f to < 78f8e96df06e2d04d82d4071c299b59d28744f47affected89d9475610771b5e5fe1879075f0fc9ba6e3755f to < 3733439593ad12f7b54ae35c273ea6f15d692de3affected89d9475610771b5e5fe1879075f0fc9ba6e3755f to < 05fbde3a77a4f1d62e4c4428f384288c1f1a0be5affected
Linux Linux
Default version status: affected
4.10affected0 to < 4.10unaffected5.10.122 to ≤ 5.10.*unaffected5.15.47 to ≤ 5.15.*unaffected5.17.15 to ≤ 5.17.*unaffected5.18.4 to ≤ 5.18.*unaffected5.19 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/c1f0187025905e9981000d44a92e159468b561a8 ↗
- https://git.kernel.org/stable/c/0fcb0b131cc90c8f523a293d84c58d0c7273c96f ↗
- https://git.kernel.org/stable/c/78f8e96df06e2d04d82d4071c299b59d28744f47 ↗
- https://git.kernel.org/stable/c/3733439593ad12f7b54ae35c273ea6f15d692de3 ↗
- https://git.kernel.org/stable/c/05fbde3a77a4f1d62e4c4428f384288c1f1a0be5 ↗