CVE-2022-49376

published 2025-02-26

CVE-2022-49376: 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…

Priority P4 19 medium 5.5 CVSS 3.1

AV L AC L PR L UI N S U C N I N A H

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

15 ranges

Vendor	Product	Version range	Fixed in
debian	linux	< linux 5.18.5-1 (bookworm)	linux 5.18.5-1 (bookworm)
linux	linux	—	—
linux	linux	>= 89d9475610771b5e5fe1879075f0fc9ba6e3755f < c1f0187025905e9981000d44a92e159468b561a8	c1f0187025905e9981000d44a92e159468b561a8
linux	linux	>= 89d9475610771b5e5fe1879075f0fc9ba6e3755f < 0fcb0b131cc90c8f523a293d84c58d0c7273c96f	0fcb0b131cc90c8f523a293d84c58d0c7273c96f
linux	linux	>= 89d9475610771b5e5fe1879075f0fc9ba6e3755f < 78f8e96df06e2d04d82d4071c299b59d28744f47	78f8e96df06e2d04d82d4071c299b59d28744f47
linux	linux	>= 89d9475610771b5e5fe1879075f0fc9ba6e3755f < 3733439593ad12f7b54ae35c273ea6f15d692de3	3733439593ad12f7b54ae35c273ea6f15d692de3
linux	linux	>= 89d9475610771b5e5fe1879075f0fc9ba6e3755f < 05fbde3a77a4f1d62e4c4428f384288c1f1a0be5	05fbde3a77a4f1d62e4c4428f384288c1f1a0be5
linux	linux_kernel	>= 0 < 5.10.127-1	5.10.127-1
linux	linux_kernel	>= 0 < 5.18.5-1	5.18.5-1
linux	linux_kernel	>= 0 < 5.18.5-1	5.18.5-1
linux	linux_kernel	>= 0 < 5.18.5-1	5.18.5-1
linux	linux_kernel	>= 4.10 < 5.10.122	5.10.122
linux	linux_kernel	>= 5.11 < 5.15.47	5.15.47
linux	linux_kernel	>= 5.16 < 5.17.15	5.17.15
linux	linux_kernel	>= 5.18 < 5.18.4	5.18.4

CVSS provenance

nvd v3.1 5.5 MEDIUM CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

osv 5.5 MEDIUM

vendor_debian 5.5 MEDIUM

vendor_redhat 5.5 MEDIUM

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CWE-476