CVE-2023-53173
published 2025-09-15CVE-2023-53173: In the Linux kernel, the following vulnerability has been resolved: tty: pcn_uart: fix memory leak with using debugfs_lookup() When calling debugfs_lookup()…
PriorityP416medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.14%
4.3th percentile
In the Linux kernel, the following vulnerability has been resolved:
tty: pcn_uart: fix memory leak with using debugfs_lookup()
When calling debugfs_lookup() the result must have dput() called on it,
otherwise the memory will leak over time. To make things simpler, just
call debugfs_lookup_and_remove() instead which handles all of the logic
at once.
Affected
12 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 6.1.20-1 (bookworm) | linux 6.1.20-1 (bookworm) |
| linux | linux | — | — |
| linux | linux | >= 4dec5f1af694526db760dfbb47211236e556e27c < cf042964c2fa72950bbbf25b2cdd732b873e89db | cf042964c2fa72950bbbf25b2cdd732b873e89db |
| linux | linux | >= 4dec5f1af694526db760dfbb47211236e556e27c < 4459d1e7bd0421b3b6fcd745773d8823f71615ef | 4459d1e7bd0421b3b6fcd745773d8823f71615ef |
| linux | linux | >= 4dec5f1af694526db760dfbb47211236e556e27c < 139769c4bd8273b5e3f85ea474aa37018fe7e436 | 139769c4bd8273b5e3f85ea474aa37018fe7e436 |
| linux | linux | >= 4dec5f1af694526db760dfbb47211236e556e27c < 04a189c720aa2b6091442113ce9b9bc93552dff8 | 04a189c720aa2b6091442113ce9b9bc93552dff8 |
| linux | linux_kernel | < 5.15.100 | 5.15.100 |
| linux | linux_kernel | >= 0 < 6.1.20-1 | 6.1.20-1 |
| linux | linux_kernel | >= 0 < 6.1.20-1 | 6.1.20-1 |
| linux | linux_kernel | >= 0 < 6.1.20-1 | 6.1.20-1 |
| linux | linux_kernel | >= 5.16 < 6.1.18 | 6.1.18 |
| linux | linux_kernel | >= 6.2 < 6.2.5 | 6.2.5 |
CVSS provenance
nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv5.5MEDIUM
vendor_debian5.5MEDIUM
vendor_redhat5.5MEDIUM
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Red Hat
kernel: tty: pcn_uart: fix memory leak with using debugfs_lookup()
vendor_redhat·2025-09-15·CVSS 5.5
CVE-2023-53173 [MEDIUM] CWE-772 kernel: tty: pcn_uart: fix memory leak with using debugfs_lookup()
kernel: tty: pcn_uart: fix memory leak with using debugfs_lookup()
In the Linux kernel, the following vulnerability has been resolved:
tty: pcn_uart: fix memory leak with using debugfs_lookup()
When calling debugfs_lookup() the result must have dput() called on it,
otherwise the memory will leak over time. To make things simpler, just
call debugfs_lookup_and_remove() instead which handles all of the logic
at once.
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 Enterprise Linux 8) - Not affected
Package
Debian
CVE-2023-53173: linux - In the Linux kernel, the following vulnerability has been resolved: tty: pcn_ua...
vendor_debian·2023·CVSS 5.5
CVE-2023-53173 [MEDIUM] CVE-2023-53173: linux - In the Linux kernel, the following vulnerability has been resolved: tty: pcn_ua...
In the Linux kernel, the following vulnerability has been resolved: tty: pcn_uart: fix memory leak with using debugfs_lookup() When calling debugfs_lookup() the result must have dput() called on it, otherwise the memory will leak over time. To make things simpler, just call debugfs_lookup_and_remove() instead which handles all of the logic at once.
Scope: local
bookworm: resolved (fixed in 6.1.20-1)
bullseye: resolved
forky: resolved (fixed in 6.1.20-1)
sid: resolved (fixed in 6.1.20-1)
trixie: resolved (fixed in 6.1.20-1)
OSV
CVE-2023-53173: In the Linux kernel, the following vulnerability has been resolved: tty: pcn_uart: fix memory leak with using debugfs_lookup() When calling debugfs_lo
osv·2025-09-15·CVSS 5.5
CVE-2023-53173 [MEDIUM] CVE-2023-53173: In the Linux kernel, the following vulnerability has been resolved: tty: pcn_uart: fix memory leak with using debugfs_lookup() When calling debugfs_lo
In the Linux kernel, the following vulnerability has been resolved: tty: pcn_uart: fix memory leak with using debugfs_lookup() When calling debugfs_lookup() the result must have dput() called on it, otherwise the memory will leak over time. To make things simpler, just call debugfs_lookup_and_remove() instead which handles all of the logic at once.
GHSA
GHSA-f23r-pcv3-c69q: In the Linux kernel, the following vulnerability has been resolved:
tty: pcn_uart: fix memory leak with using debugfs_lookup()
When calling debugfs_
ghsa_unreviewed·2025-09-15
CVE-2023-53173 [MEDIUM] CWE-401 GHSA-f23r-pcv3-c69q: In the Linux kernel, the following vulnerability has been resolved:
tty: pcn_uart: fix memory leak with using debugfs_lookup()
When calling debugfs_
In the Linux kernel, the following vulnerability has been resolved:
tty: pcn_uart: fix memory leak with using debugfs_lookup()
When calling debugfs_lookup() the result must have dput() called on it,
otherwise the memory will leak over time. To make things simpler, just
call debugfs_lookup_and_remove() instead which handles all of the logic
at once.
No detection rules found.
No public exploits indexed.
2025-09-15
Published