CVE-2022-49376
Linux SCSI sd NULL Pointer Dereference Vulnerability
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().
INFO
Published Date :
Feb. 26, 2025, 7:01 a.m.
Last Modified :
April 14, 2025, 8:37 p.m.
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Remotely Exploitable :
No
Impact Score :
3.6
Exploitability Score :
1.8
References to Advisories, Solutions, and Tools
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CVE-2022-49376.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
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The following list is the news that have been mention
CVE-2022-49376 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2022-49376 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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Initial Analysis by [email protected]
Apr. 14, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Added CWE CWE-476 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.18 up to (excluding) 5.18.4 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.16 up to (excluding) 5.17.15 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.15.47 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.10 up to (excluding) 5.10.122 Added Reference Type kernel.org: https://git.kernel.org/stable/c/05fbde3a77a4f1d62e4c4428f384288c1f1a0be5 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/0fcb0b131cc90c8f523a293d84c58d0c7273c96f Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/3733439593ad12f7b54ae35c273ea6f15d692de3 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/78f8e96df06e2d04d82d4071c299b59d28744f47 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/c1f0187025905e9981000d44a92e159468b561a8 Types: Patch -
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Feb. 26, 2025
Action Type Old Value New Value Added 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(). Added Reference https://git.kernel.org/stable/c/05fbde3a77a4f1d62e4c4428f384288c1f1a0be5 Added Reference https://git.kernel.org/stable/c/0fcb0b131cc90c8f523a293d84c58d0c7273c96f Added Reference https://git.kernel.org/stable/c/3733439593ad12f7b54ae35c273ea6f15d692de3 Added Reference https://git.kernel.org/stable/c/78f8e96df06e2d04d82d4071c299b59d28744f47 Added Reference https://git.kernel.org/stable/c/c1f0187025905e9981000d44a92e159468b561a8
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2022-49376 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2022-49376
weaknesses.