Fluid Attacks Database

Description

A flaw was found in the Linux kernel’s udmabuf subsystem where the scatter-gather (sg) pointer was not properly set to NULL if creation of the sg table failed. If userspace attempts to map a dmabuf and the sg table allocation fails (e.g., due to memory exhaustion), the kernel later attempts to free an invalid sg pointer during dmabuf release, causing a NULL pointer dereference and kernel crash

Mitigation

Update Impact

Minimal update. May introduce new vulnerabilities or breaking changes.

Ecosystem	Package	Affected version	Patched versions
debian 12	linux	>=0 <6.0.3-1	6.0.3-1
debian 14	linux	>=0 <6.0.3-1	6.0.3-1
debian 11	linux	=5.10.103-1 \|\| =5.10.103-1~bpo10+1 \|\| =5.10.106-1 \|\| =5.10.113-1 \|\| =5.10.120-1 \|\| =5.10.120-1~bpo10+1 \|\| =5.10.127-1 \|\| =5.10.127-2 \|\| =5.10.127-2~bpo10+1 \|\| =5.10.136-1 \|\| =5.10.140-1 \|\| =5.10.148-1 \|\| =5.10.149-1 \|\| =5.10.149-2 \|\| =5.10.46-4 \|\| =5.10.46-5 \|\| =5.10.70-1 \|\| =5.10.70-1~bpo10+1 \|\| =5.10.84-1 \|\| =5.10.92-1 \|\| =5.10.92-1~bpo10+1 \|\| =5.10.92-2 \|\| >=0 <5.10.158-1	5.10.158-1
debian 13	linux	>=0 <6.0.3-1	6.0.3-1
rpm rhel9	kernel-rt	-	-
rpm rhel8	kernel	<0:4.18.0-513.5.1.el8_9	0:4.18.0-513.5.1.el8_9
rpm rhel9	kernel	<0:5.14.0-362.8.1.el9_3	0:5.14.0-362.8.1.el9_3
rpm rhel8	kernel-rt	-	-

Aliases

1. CVE-2022-508192. NVD-2022-508193. OSV-DEBIAN-2022-508194. OSV-2022-508195. SECURITY-TRACKER-CVE-2022-50819

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