CVE-2023-54280
published 2025-12-30CVE-2023-54280: In the Linux kernel, the following vulnerability has been resolved: cifs: fix potential race when tree connecting ipc Protect access of…
PriorityP345critical9.8CVSS 3.1
AVNACLPRNUINSUCHIHAH
EPSS
0.52%
43.6th percentile
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.
Affected
11 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 6.3.7-1 (forky) | linux 6.3.7-1 (forky) |
| linux | linux | — | — |
| linux | linux | — | — |
| linux | linux | >= 5.15.81 < 5.16 | 5.16 |
| linux | linux | >= c88f7dcd6d6429197fc2fd87b54a894ffcd48e8e < 536ec71ba060a02fabe8e22cecb82fe7b3a8708b | 536ec71ba060a02fabe8e22cecb82fe7b3a8708b |
| linux | linux | >= c88f7dcd6d6429197fc2fd87b54a894ffcd48e8e < 553476df55a111e6a66ad9155256aec0ec1b7ad0 | 553476df55a111e6a66ad9155256aec0ec1b7ad0 |
| linux | linux | >= c88f7dcd6d6429197fc2fd87b54a894ffcd48e8e < ee20d7c6100752eaf2409d783f4f1449c29ea33d | ee20d7c6100752eaf2409d783f4f1449c29ea33d |
| linux | linux_kernel | >= 0 < 6.3.7-1 | 6.3.7-1 |
| linux | linux_kernel | >= 0 < 6.3.7-1 | 6.3.7-1 |
| linux | linux_kernel | >= 5.16.0 < 6.2.15 | 6.2.15 |
| linux | linux_kernel | >= 6.3.0 < 6.3.2 | 6.3.2 |
CVSS provenance
nvdv3.19.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
vendor_redhat5.5MEDIUM
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GHSA
GHSA-2c5w-8p3h-w8f6: In the Linux kernel, the following vulnerability has been resolved:
cifs: fix potential race when tree connecting ipc
Protect access of TCP_Server_I
ghsa_unreviewed·2025-12-30
CVE-2023-54280 GHSA-2c5w-8p3h-w8f6: In the Linux kernel, the following vulnerability has been resolved:
cifs: fix potential race when tree connecting ipc
Protect access of TCP_Server_I
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.
OSV
CVE-2023-54280: In the Linux kernel, the following vulnerability has been resolved: cifs: fix potential race when tree connecting ipc Protect access of TCP_Server_Inf
osv·2025-12-30
CVE-2023-54280 CVE-2023-54280: In the Linux kernel, the following vulnerability has been resolved: cifs: fix potential race when tree connecting ipc Protect access of TCP_Server_Inf
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.
OSV
cifs: fix potential race when tree connecting ipc
osv·2025-12-30
CVE-2023-54280 cifs: fix potential race when tree connecting ipc
cifs: fix potential race when tree connecting ipc
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.
Red Hat
kernel: cifs: fix potential race when tree connecting ipc
vendor_redhat·2025-12-30·CVSS 5.5
CVE-2023-54280 [MEDIUM] CWE-825 kernel: cifs: fix potential race when tree connecting ipc
kernel: cifs: fix potential race when tree connecting ipc
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.
Package: kernel (Red Hat Enterprise Linux 10) - Not affected
Package: kernel (Red Hat Enterprise Linux 6) - Not affected
Package: kernel (Red Hat Enterprise Linux 7) - Not affected
Package: kernel-rt (Red Hat Enterprise Linux 7) - Not affected
Package: kernel (Red Hat Enterprise Linux 8) - Not affected
Package: kernel-rt (Red Hat Ente
Debian
CVE-2023-54280: linux - In the Linux kernel, the following vulnerability has been resolved: cifs: fix p...
vendor_debian·2023
CVE-2023-54280 CVE-2023-54280: linux - In the Linux kernel, the following vulnerability has been resolved: cifs: fix p...
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.
Scope: local
bookworm: open
bullseye: resolved
forky: resolved (fixed in 6.3.7-1)
sid: resolved (fixed in 6.3.7-1)
trixie: resolved (fixed in 6.3.7-1)
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2023-54280 kernel: cifs: fix potential race when tree connecting ipc
bugzilla·2025-12-30
CVE-2023-54280 [MEDIUM] CVE-2023-54280 kernel: cifs: fix potential race when tree connecting ipc
CVE-2023-54280 kernel: cifs: fix potential race when tree connecting ipc
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.
Discussion:
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025123026-CVE-2023-54280-26ee@gregkh/T
Wiz
CVE-2023-54280 Impact, Exploitability, and Mitigation Steps | Wiz
blogs_wiz
CVE-2023-54280 CVE-2023-54280 Impact, Exploitability, and Mitigation Steps | Wiz
## CVE-2023-54280 :
Linux Kernel vulnerability analysis and mitigation
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.
Source : NVD
Published December 30, 2025
CNA Score N/A
Affected Technologies
Linux Kernel
Linux Debian
Has Public Exploit No
Has CISA KEV Exploit No
CISA KEV Release Date N/A
CISA KEV Due Date N/A
Exploitation Probability Percentile (EPSS) 6.8
Exploitation Probability (EPSS) N/A
Affected packages and libraries
2025-12-30
Published