CVE-2026-64147CWE-401

CVE-2026-64147

Medium · published July 19, 2026

CVSS v3.1
5.5
EPSS
0%
Percentile
2.2
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
5.5 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00127 · 2.2th percentile
Weakness
CWE-401 · Missing Release of Memory after Effective Lifetime
Published
2026-07-19T20:17Z
Affected products (15)
ProductVersionsFixed in
linux/linux_kernel≥ 6.6.16, < 6.6.1426.6.142
linux/linux_kernel≥ 6.7.4, < 6.86.8
linux/linux_kernel≥ 6.8.1, < 6.12.926.12.92
linux/linux_kernel≥ 6.13, < 6.18.346.18.34
linux/linux_kernel≥ 6.19, < 7.0.117.0.11
linux/linux_kernelall versions—
linux/linux_kernelall versions—
linux/linux_kernelall versions—
linux/linux_kernelall versions—
linux/linux_kernelall versions—
linux/linux_kernelall versions—
linux/linux_kernelall versions—
linux/linux_kernelall versions—
linux/linux_kernelall versions—
linux/linux_kernelall versions—
References (5)
https://git.kernel.org/stable/c/26e19622c485e53c3fdb299e822068a0542ddf0c · 416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/60ef1675b652e912f3eb064767af4432393291fd · 416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/91d13e92b983e6c6d7631012c2e20ae8057de9f2 · 416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d7f4dd4c8fb380898fef7a77d48fce7ccdb4fc32 · 416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/dc416e32baaeb620b9809e9e25fc7b30889686e9 · 416baaa9-dc9f-4396-8d5f-8c081fb06d67
EPSS history
Timeline
  • 19 JUL 15:40Z
    pds_core: fix debugfs_lookup dentry leak and error handling
    cvelistv5