CVE-2023-52757 — Use After Free in Linux
Severity
7.8HIGHNVD
OSV8.8OSV7.1
EPSS
0.0%
top 98.58%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedMay 21
Latest updateOct 21
Description
In the Linux kernel, the following vulnerability has been resolved:
smb: client: fix potential deadlock when releasing mids
All release_mid() callers seem to hold a reference of @mid so there is
no need to call kref_put(&mid->refcount, __release_mid) under
@server->mid_lock spinlock. If they don't, then an use-after-free bug
would have occurred anyways.
By getting rid of such spinlock also fixes a potential deadlock as
shown below
CPU 0 CPU 1
cifs_demultiplex_thread() cifs_debug_data_proc_sh…
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitability: 1.8 | Impact: 5.9
Affected Packages6 packages
▶CVEListV5linux/linux7b71843fa7028475b052107664cbe120156a2cfc — 99f476e27aad5964ab13777d84fda67d1356dec1+7
Also affects: Debian Linux 11.0