CVE-2025-71184: Linux kernel · NULL Pointer Dereference
Source GCVE Database
Not known to be exploited · CVSS 5.5 Medium · fixed in f157dd661339fc6f5f2b574fe2429c43bd309534 : update Linux kernel when convenient.
Data as of 30 Oct 2026, 16:33 UTC
Thin evidence
One scorer or none- Patch
- Available – fixed in f157dd661339fc6f5f2b574fe2429c43bd309534, 99181ddb124cfe2b09f5e924c308222d2339e82a, 582ba48e4a4c06fef6bdcf4e57b7b9af660bbd0c +2
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitation evidence
Disclosed: evidence found.
CVE published 31 Jan 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 30 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– |
Description
In the Linux kernel, the following vulnerability has been resolved: btrfs: fix NULL dereference on root when tracing inode eviction When evicting an inode the first thing we do is to setup tracing for it, which implies fetching the root's id. But in btrfs_evict_inode() the root might be NULL, as implied in the next check that we do in btrfs_evict_inode(). Hence, we either should set the ->root_objectid to 0 in case the root is NULL, or we move tracing setup after checking that the root is not NULL. Setting the rootid to 0 at least gives us the possibility to trace this call even in the case when the root is NULL, so that's the solution taken here.
References
- nvd.nist.gov/vuln/detail/CVE-2025-71184 (opens in a new tab)
- git.kernel.org/stable/c/582ba48e4a4c06fef6bdcf4e57b7b9af660bbd0c (opens in a new tab)
- git.kernel.org/stable/c/64d8abd8c5305795a2b35fc96039d99d34f5e762 (opens in a new tab)
- git.kernel.org/stable/c/99181ddb124cfe2b09f5e924c308222d2339e82a (opens in a new tab)
- git.kernel.org/stable/c/99e057f3d3ef24b99a7b1d84e01dd1bd890098da (opens in a new tab)
- git.kernel.org/stable/c/f157dd661339fc6f5f2b574fe2429c43bd309534 (opens in a new tab)