Vulnerability Details CVE-2026-52950
In the Linux kernel, the following vulnerability has been resolved:
drm/xe/dma-buf: fix UAF with retry loop
Retry doesn't work here, since bo will be freed on error, leading to
UAF. However, now that we do the alloc & init before the attach, we can
now combine this as one unit and have the init do the alloc for us. This
should make the retry safe.
Reported by Sashiko.
v2: Fix up the error unwind (CI)
(cherry picked from commit 479669418253e0f27f8cf5db01a731352ea592e7)
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 3.1%
CVSS Severity
CVSS v3 Score 7.8
References
- https://git.kernel.org/stable/c/155a372a1cc50fa93387c5d3cdfd614a61e1afd1
- https://git.kernel.org/stable/c/39fdac6be02eb7c3460518c1c4085f75f935c4ce
- https://git.kernel.org/stable/c/827062952ed9bdf4220466c1f05ce452d04bdedf
- https://access.redhat.com/security/cve/CVE-2026-52950
- https://bugzilla.redhat.com/show_bug.cgi?id=2492318
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-52950.json
Products affected by CVE-2026-52950
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cpe:2.3:o:linux:linux_kernel:6.18
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cpe:2.3:o:linux:linux_kernel:6.18.1
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cpe:2.3:o:linux:linux_kernel:6.18.10
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cpe:2.3:o:linux:linux_kernel:6.18.11
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cpe:2.3:o:linux:linux_kernel:6.18.13
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cpe:2.3:o:linux:linux_kernel:6.18.14
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cpe:2.3:o:linux:linux_kernel:6.18.16
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cpe:2.3:o:linux:linux_kernel:6.18.17
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cpe:2.3:o:linux:linux_kernel:6.18.18
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cpe:2.3:o:linux:linux_kernel:6.18.19
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cpe:2.3:o:linux:linux_kernel:6.18.2
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cpe:2.3:o:linux:linux_kernel:6.18.20
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cpe:2.3:o:linux:linux_kernel:6.18.21
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cpe:2.3:o:linux:linux_kernel:6.18.22
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cpe:2.3:o:linux:linux_kernel:6.18.23
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cpe:2.3:o:linux:linux_kernel:6.18.24
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cpe:2.3:o:linux:linux_kernel:6.18.25
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cpe:2.3:o:linux:linux_kernel:6.18.26
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cpe:2.3:o:linux:linux_kernel:6.18.27
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cpe:2.3:o:linux:linux_kernel:6.18.28
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cpe:2.3:o:linux:linux_kernel:6.18.29
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cpe:2.3:o:linux:linux_kernel:6.18.3
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cpe:2.3:o:linux:linux_kernel:6.18.30
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cpe:2.3:o:linux:linux_kernel:6.18.31
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cpe:2.3:o:linux:linux_kernel:6.18.32
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cpe:2.3:o:linux:linux_kernel:6.18.4
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cpe:2.3:o:linux:linux_kernel:6.18.5
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cpe:2.3:o:linux:linux_kernel:6.18.6
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cpe:2.3:o:linux:linux_kernel:6.18.7
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cpe:2.3:o:linux:linux_kernel:6.18.8
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cpe:2.3:o:linux:linux_kernel:6.18.9
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cpe:2.3:o:linux:linux_kernel:6.19
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cpe:2.3:o:linux:linux_kernel:6.19.1
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cpe:2.3:o:linux:linux_kernel:6.19.10
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cpe:2.3:o:linux:linux_kernel:6.19.11
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cpe:2.3:o:linux:linux_kernel:6.19.12
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cpe:2.3:o:linux:linux_kernel:6.19.13
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cpe:2.3:o:linux:linux_kernel:6.19.14
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cpe:2.3:o:linux:linux_kernel:6.19.3
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cpe:2.3:o:linux:linux_kernel:6.19.4
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cpe:2.3:o:linux:linux_kernel:6.19.6
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cpe:2.3:o:linux:linux_kernel:6.19.7
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cpe:2.3:o:linux:linux_kernel:6.19.8
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cpe:2.3:o:linux:linux_kernel:6.19.9
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cpe:2.3:o:linux:linux_kernel:7.0
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cpe:2.3:o:linux:linux_kernel:7.0.1
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cpe:2.3:o:linux:linux_kernel:7.0.2
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cpe:2.3:o:linux:linux_kernel:7.0.3
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cpe:2.3:o:linux:linux_kernel:7.0.4
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cpe:2.3:o:linux:linux_kernel:7.0.5
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cpe:2.3:o:linux:linux_kernel:7.0.6
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cpe:2.3:o:linux:linux_kernel:7.0.7
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cpe:2.3:o:linux:linux_kernel:7.0.8
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cpe:2.3:o:linux:linux_kernel:7.0.9
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cpe:2.3:o:linux:linux_kernel:7.1