CVE-2026-97603: Linux kernel · idpf: disable DIM work before freeing q_vectors
Affects Linux kernelSource CVE Database V5
Not known to be exploited · fixed in cd7a1598645b6917a8676b7e2efe8d97ce68a952 : patch Linux kernel soon.
Data as of 26 Oct 2026, 14:05 UTC
Rated High by Threat Radar's AI analysis · CVSS not yet scored by NVD
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 10% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in cd7a1598645b6917a8676b7e2efe8d97ce68a952, 7e4312953788244d47074987d40d76702cf929f1, 7dd4c829bac2916be98a3e34b41daaba7f42b4c4 +1
Exploitation evidence
Disclosed: evidence found.
CVE published 25 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: 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 26 Oct 2026.
What to do
Upgrade Linux kernel to cd7a1598645b6917a8676b7e2efe8d97ce68a952, 7e4312953788244d47074987d40d76702cf929f1, 7dd4c829bac2916be98a3e34b41daaba7f42b4c4 or 7d64d4c6bb6bb63b6cdb7de133c3ec48333b27b5.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in– |
AI-suggested
A fix is available and has been applied in the Linux kernel source code. Users should update to a kernel version that includes the commits fixing this issue. The fix involves proper disabling of DIM work using disable_work_sync() before freeing q_vectors memory. No additional mitigation is required beyond applying the official patch.
Description
A use-after-free vulnerability exists in the Linux kernel's idpf driver due to improper handling of Tx/Rx DIM work before freeing q_vectors. The driver fails to drain scheduled DIM work before freeing associated memory, leading to potential access of freed memory. This race condition can cause kernel memory corruption under certain load conditions.
References
- git.kernel.org/stable/c/7d64d4c6bb6bb63b6cdb7de133c3ec48333b27b5 (opens in a new tab)
- git.kernel.org/stable/c/7e4312953788244d47074987d40d76702cf929f1 (opens in a new tab)
- git.kernel.org/stable/c/cd7a1598645b6917a8676b7e2efe8d97ce68a952 (opens in a new tab)
- git.kernel.org/stable/c/7dd4c829bac2916be98a3e34b41daaba7f42b4c4 (opens in a new tab)