CVE-2023-54280cifs: fix potential race when tree connecting ipc
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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In the Linux kernel, the following vulnerability has been resolved: cifs: fix potential race when tree connecting ipc Protect access of TCP_Server_Info::hostname when building the ipc tree name as it might get freed in cifsd thread and thus causing an use-after-free bug in __tree_connect_dfs_target(). Also, while at it, update status of IPC tcon on success and then avoid any extra tree connects.
- CVSS
- 9.8 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Deferred
- Record last updated
- Oct 15, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from c88f7dcd6d6429197fc2fd87b54a894ffcd48e8e before 536ec71ba060a02fabe8e22cecb82fe7b3a8708b; from c88f7dcd6d6429197fc2fd87b54a894ffcd48e8e before 553476df55a111e6a66ad9155256aec0ec1b7ad0; from c88f7dcd6d6429197fc2fd87b54a894ffcd48e8e before ee20d7c6100752eaf2409d783f4f1449c29ea33d; 81d583baa5f1abd73c755ce1992929debd20b687; from 5.15.81 before 5.16 | CNA record |
References
- https://git.kernel.org/stable/c/536ec71ba060a02fabe8e22cecb82fe7b3a8708b
- https://git.kernel.org/stable/c/553476df55a111e6a66ad9155256aec0ec1b7ad0
- https://git.kernel.org/stable/c/ee20d7c6100752eaf2409d783f4f1449c29ea33d
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.