CVE-2023-52872
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2023-52872
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-52872.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2023-52872
- Downstream
- Related
- Published
- 2024-05-21T15:32:06.610Z
- Modified
- 2025-11-28T02:34:42.902329Z
- Severity
-
- 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- tty: n_gsm: fix race condition in status line change on dead connections
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
tty: n_gsm: fix race condition in status line change on dead connections
gsmcleanupmux() cleans up the gsm by closing all DLCIs, stopping all timers, removing the virtual tty devices and clearing the data queues. This procedure, however, may cause subsequent changes of the virtual modem status lines of a DLCI. More data is being added the outgoing data queue and the deleted kick timer is restarted to handle this. At this point many resources have already been removed by the cleanup procedure. Thus, a kernel panic occurs.
Fix this by proving in gsmmodemupdate() that the cleanup procedure has not been started and the mux is still alive.
Note that writing to a virtual tty is already protected by checks against the DLCI specific connection state.
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/52xxx/CVE-2023-52872.json" }- References
-
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/19d34b73234af542cc8a218cf398dee73cdb1890
- https://git.kernel.org/stable/c/3a75b205de43365f80a33b98ec9289785da56243
- https://git.kernel.org/stable/c/81a4dd5e6c78f5d8952fa8c9d36565db1fe01444
- https://git.kernel.org/stable/c/ce4df90333c4fe65acb8b5089fdfe9b955ce976a
- https://git.kernel.org/stable/c/df6cfab66ff2a44bd23ad5dd5309cb3421bb6593
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/52xxx/CVE-2023-52872.json
- https://nvd.nist.gov/vuln/detail/CVE-2023-52872
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduceddd37f657387853623f20c1b2482afbb9cd8ece33Fixed81a4dd5e6c78f5d8952fa8c9d36565db1fe01444
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedc568f7086c6e771c77aad13d727c70ef70e07243Fixeddf6cfab66ff2a44bd23ad5dd5309cb3421bb6593Fixed19d34b73234af542cc8a218cf398dee73cdb1890Fixedce4df90333c4fe65acb8b5089fdfe9b955ce976aFixed3a75b205de43365f80a33b98ec9289785da56243
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedLast affectedd834aba5f30d9a6f98f4ca1eb07e501f1989331cLast affected692e847a8e6607909c4a3f98ab16ccee7849bd11