5.5

CVE-2021-47307

cifs: prevent NULL deref in cifs_compose_mount_options()

In the Linux kernel, the following vulnerability has been resolved:

cifs: prevent NULL deref in cifs_compose_mount_options()

The optional @ref parameter might contain an NULL node_name, so
prevent dereferencing it in cifs_compose_mount_options().

Addresses-Coverity: 1476408 ("Explicit null dereferenced")
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version < 5.4.135
Linux ≫ Linux Kernel Version >= 5.5 < 5.10.53
Linux ≫ Linux Kernel Version >= 5.11 < 5.13.5
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.24% 0.142
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-476 NULL Pointer Dereference

The product dereferences a pointer that it expects to be valid but is NULL.

https://git.kernel.org/stable/c/03313d1c3a2f086bb60920607ab79ac8f8578306
Patch
https://git.kernel.org/stable/c/ae3d181f4e912f51af7776ea165f199b16fc165d
Patch
https://git.kernel.org/stable/c/e58c162789becede894d3e94c0ce6695a2ef5796
Patch
https://git.kernel.org/stable/c/f7d1fa65e74263d11f90ddd33b4d4cd905a93759
Patch