VulnerabilityPublished 24 Jun 2026Updated 6 Nov 2026

CVE-2026-52949: Linux kernel · drm/ttm: Fix ttm_bo_shrink() infinite LRU walk on backup failure

Affects Linux kernelSource CVE Database V5

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Not known to be exploited · fixed in d0ce7b07dafe43d78150f90894027746576d7cb7 : update Linux kernel when convenient.

Data as of 6 Nov 2026, 16:49 UTC

Severity

Unrated

Rated by Threat Radar · No CVSS score from NVD or the CNA

Thin evidence

One scorer or none

Exploitation: No evidence of active exploitation and no public proof of concept
Automatable: Attackers cannot reliably automate steps 1–4 of the kill chain
Technical impact: Limited control over the software or limited information exposure

CISA SSVC assessment, 2026-11-06.

Patch

Available – fixed in d0ce7b07dafe43d78150f90894027746576d7cb7, 9402ad98a047dd9894ec868a7df5ad9bd03327d3, 1d59f36e95f7f7134db0e313c9d787cb0adb2153

Exploitation evidence

Disclosed: evidence found.
CVE published 24 Jun 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 6 Nov 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Upgrade Linux kernel to d0ce7b07dafe43d78150f90894027746576d7cb7, 9402ad98a047dd9894ec868a7df5ad9bd03327d3 or 1d59f36e95f7f7134db0e313c9d787cb0adb2153.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected ≥ 70d645deac98303d1bf9ab08a4e68da52bf8c1e1, < d0ce7b07dafe43d78150f90894027746576d7cb7	Fixed in d0ce7b07dafe43d78150f90894027746576d7cb7
LinuxLinux	Affected ≥ 70d645deac98303d1bf9ab08a4e68da52bf8c1e1, < 9402ad98a047dd9894ec868a7df5ad9bd03327d3	Fixed in 9402ad98a047dd9894ec868a7df5ad9bd03327d3
LinuxLinux	Affected ≥ 70d645deac98303d1bf9ab08a4e68da52bf8c1e1, < 1d59f36e95f7f7134db0e313c9d787cb0adb2153	Fixed in 1d59f36e95f7f7134db0e313c9d787cb0adb2153
LinuxLinux	Affected =6.15	Fixed in–

Description

In the Linux kernel, the following vulnerability has been resolved: drm/ttm: Fix ttm_bo_shrink() infinite LRU walk on backup failure Apply the same fix as b2ed01e7ad ("drm/ttm: Fix ttm_bo_swapout() infinite LRU walk on swapout failure") to the ttm_bo_shrink() path. Move del_bulk_move from before the backup to after success only, using ttm_resource_del_bulk_move_unevictable() since the resource is now unevictable once fully backed up.

References

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