In the Linux kernel, the following vulnerability has been resolved:
mm/damon/sysfs-schemes: protect path kfree() with damon_sysfs_lock
damon_sysfs_quot_goal->path can be read and written by users, via DAMON
sysfs 'path' file. It can also be indirectly read, for the parameters
{on,off}line committing to DAMON. The reads for parameters committing are
protected by damon_sysfs_lock to avoid the sysfs files being destroyed
while any of the parameters are being read. But the user-driven direct
reads and writes are not protected by any lock, while the write is
deallocating the path-pointing buffer. As a result, the readers could
read the already freed buffer (user-after-free). Note that the user-reads
don't race when the same open file is used by the writer, due to kernfs's
open file locking. Nonetheless, doing the reads and writes with separate
open files would be common. Fix it by protecting both the user-direct
reads and writes with damon_sysfs_lock.
References
Configurations
Configuration 1 (hide)
|
History
11 Jun 2026, 03:01
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://git.kernel.org/stable/c/a34ca3e33da4b924c66bcca3729bf68ec5936910 - Patch | |
| References | () https://git.kernel.org/stable/c/cf3b71421ca00807328c6d9cd242f9de3b77a4bf - Patch | |
| CWE | CWE-415 | |
| First Time |
Linux linux Kernel
Linux |
|
| CPE | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:* |
|
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 7.8 |
28 May 2026, 10:16
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-05-28 10:16
Updated : 2026-06-11 03:01
NVD link : CVE-2026-46183
Mitre link : CVE-2026-46183
CVE.ORG link : CVE-2026-46183
JSON object : View
Products Affected
linux
- linux_kernel
CWE
CWE-415
Double Free