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NULL Pointer Dereference The advisory has been revoked - it doesn't affect any version of package kernel-tools-libs  (opens in a new tab)

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  • Snyk IDSNYK-RHEL9-KERNELTOOLSLIBS-10249964
  • published27 May 2025
  • disclosed26 Feb 2025
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Introduced: 26 Feb 2025

CVE-2022-49376  (opens in a new tab)
CWE-476  (opens in a new tab)

Amendment

The Red Hat security team deemed this advisory irrelevant for RHEL:9.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-tools-libs package and not the kernel-tools-libs package as distributed by RHEL.

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().