Medium severity5.5NVD Advisory· Published Jul 19, 2026· Updated Aug 17, 2026
CVE-2026-64147
CVE-2026-64147
Description
In the Linux kernel, the following vulnerability has been resolved:
pds_core: fix debugfs_lookup dentry leak and error handling
debugfs_lookup() returns a dentry with an elevated reference count that must be released with dput(). The current code discards the returned dentry without calling dput(), causing a reference leak on every firmware reset recovery.
Additionally, when CONFIG_DEBUG_FS is disabled, debugfs_lookup() returns ERR_PTR(-ENODEV), not NULL. The current check passes for error pointers and would call dput() on an invalid pointer, causing a crash.
Affected products
13cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*+ 11 more
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*range: >=6.6.16,<6.6.142
- cpe:2.3:o:linux:linux_kernel:6.8:-:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.8:rc3:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.8:rc4:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.8:rc5:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.8:rc6:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.8:rc7:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.1:rc3:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.1:rc4:*:*:*:*:*:*
- (no CPE)
Patches
Vulnerability mechanics
References
5- git.kernel.org/stable/c/26e19622c485e53c3fdb299e822068a0542ddf0cnvdPatch
- git.kernel.org/stable/c/60ef1675b652e912f3eb064767af4432393291fdnvdPatch
- git.kernel.org/stable/c/91d13e92b983e6c6d7631012c2e20ae8057de9f2nvdPatch
- git.kernel.org/stable/c/d7f4dd4c8fb380898fef7a77d48fce7ccdb4fc32nvdPatch
- git.kernel.org/stable/c/dc416e32baaeb620b9809e9e25fc7b30889686e9nvdPatch
News mentions
0No linked articles in our index yet.