CVE-2026-99246: Linux kernel · tipc: protect node reset trace dump with node lock
Affects Linux kernelSource CVE Database V5
Not known to be exploited · fixed in fa8c78c0e49aa11fae116fd841e41aa8f2d68751 : patch Linux kernel soon.
Data as of 3 Nov 2026, 11:43 UTC
Rated High by Threat Radar's AI analysis · CVSS not yet scored by NVD
Thin evidence
One scorer or none- Patch
- Available – fixed in fa8c78c0e49aa11fae116fd841e41aa8f2d68751, dddf197f29ba5e47a476dde82bf542ca2e0d5e5e, c8b72ca0918e95f708f67c8b3e69b05290f2b6d2 +5
Exploitation evidence
Disclosed: evidence found.
CVE published 3 Nov 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 3 Nov 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 in the Linux kernel commits identified by the listed fixedVersions. Users should update to a Linux kernel version that includes these commits to remediate the vulnerability.
Description
A use-after-free vulnerability in the Linux kernel's TIPC subsystem was fixed by adding a node write lock around the node reset trace dump. The flaw allowed a trace event to access a link pointer after it was freed, causing a kernel memory safety issue.
References
- git.kernel.org/stable/c/c8b72ca0918e95f708f67c8b3e69b05290f2b6d2 (opens in a new tab)
- git.kernel.org/stable/c/6e492cb98ca69cc1145175e23e22e3b84da7f26d (opens in a new tab)
- git.kernel.org/stable/c/7bb6a35bd6d69019539d8782fb590fd2aa8a3236 (opens in a new tab)
- git.kernel.org/stable/c/6abd93d01b0f495f29201925a5ee8e6a583c4044 (opens in a new tab)
- git.kernel.org/stable/c/a6101d62ccfa153db8c218ce59362b8e0316fd4f (opens in a new tab)
- git.kernel.org/stable/c/b8b7d28dc2b7472ffd1eff3954c38f1976b21a7b (opens in a new tab)
- git.kernel.org/stable/c/fa8c78c0e49aa11fae116fd841e41aa8f2d68751 (opens in a new tab)
- git.kernel.org/stable/c/dddf197f29ba5e47a476dde82bf542ca2e0d5e5e (opens in a new tab)