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CVE-2026-23418: drm/xe/reg_sr: Fix leak on xa_store failure

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-04-03 · updated 2026-07-24
• Weakness: CWE-401

Description

In the Linux kernel, the following vulnerability has been resolved: drm/xe/reg_sr: Fix leak on xa_store failure Free the newly allocated entry when xa_store() fails to avoid a memory leak on the error path. v2: use goto fail_free. (Bala) (cherry picked from commit 6bc6fec71ac45f52db609af4e62bdb96b9f5fadb)

Affected products

• Linux kernel: from 6.14.1 before 6.18.17; from 6.19 before 6.19.7; 6.14, 7.0-rc1, 7.0-rc2, 7.0-rc3, 7.0-rc4, 7.0-rc5 (+2) — fixed in 6.18.17, 6.19.7

How to fix

Upgrade to a fixed version: Linux kernel 6.18.17, 6.19.7. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/05e3f01974d09d1b746dedf4144f708b5033e76f
• https://git.kernel.org/stable/c/3091723785def05ebfe6a50866f87a044ae314ba
• https://git.kernel.org/stable/c/4f461da14c7b226d1c4c179ae69956ccb8e134e2

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