CVE-2026-98213: Linux kernel · mmc: core: Cancel SDIO IRQ work before freeing host
Affects Linux kernelSource CVE Database V5
Not known to be exploited · fixed in bae1cf4f9902b2065bd78b759c7fe6312855f05e : patch Linux kernel soon.
Data as of 26 Oct 2026, 12:55 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 11% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in bae1cf4f9902b2065bd78b759c7fe6312855f05e, 4553b5004eca9c9eae29a421f1a9c4d5db2c9114, 6feadbecdae60a6324c967f3b1493741083793a3 +3
Exploitation evidence
Disclosed: evidence found.
CVE published 6 Oct 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 to a fixed release listed under Affected software.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| LinuxLinux | Affected
| Fixed in
|
| LinuxLinux | Affected
| Fixed in
|
| LinuxLinux | Affected
| Fixed in
|
| LinuxLinux | Affected
| Fixed in
|
| LinuxLinux | Affected
| Fixed in
|
| LinuxLinux | Affected
| Fixed in
|
AI-suggested
A fix is available and has been applied in the Linux kernel versions identified by the fixed commit hashes. Users should update to a kernel version that includes these fixes to mitigate this vulnerability.
Description
A use-after-free vulnerability in the Linux kernel's MMC core subsystem was fixed by ensuring SDIO IRQ work is cancelled before freeing the host. The issue occurred because scheduled work from sdio_signal_irq() was only cancelled during suspend, not on host removal, potentially causing a worker to access freed memory.
References
- git.kernel.org/stable/c/bae1cf4f9902b2065bd78b759c7fe6312855f05e (opens in a new tab)
- git.kernel.org/stable/c/0bf3d168a2cc20b120d6b50f0a8ac5b40ff4d589 (opens in a new tab)
- git.kernel.org/stable/c/1d6e7315ee1c992b4ca42c9b11c5ed0e925a00e0 (opens in a new tab)
- git.kernel.org/stable/c/4553b5004eca9c9eae29a421f1a9c4d5db2c9114 (opens in a new tab)
- git.kernel.org/stable/c/2a863458828ade0671c2bc2e469bbd7f2340eb03 (opens in a new tab)
- git.kernel.org/stable/c/6feadbecdae60a6324c967f3b1493741083793a3 (opens in a new tab)