apparmor: fix memory leak in verify_header
3Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackepss 0.2%
exploitation probability
0.2%top 93% of all CVEs
observed exploitation
nono source reports it
In the Linux kernel, the following vulnerability has been resolved:
apparmor: fix memory leak in verify_header
The function sets `*ns = NULL` on every call, leaking the namespace
string allocated in previous iterations when multiple profiles are
unpacked. This also breaks namespace consistency checking since *ns
is always NULL when the comparison is made.
Remove the incorrect assignment.
The caller (aa_unpack) initializes *ns to NULL once before the loop,
which is sufficient.
Affected products
Linux · LinuxReferences
https://git.kernel.org/stable/c/42fd831abfc15d0643c14688f0522556b347e7e6https://git.kernel.org/stable/c/4f0889f2df1ab99224a5e1ac4e20437eea5fe38ehttps://git.kernel.org/stable/c/663ce34786e759ebcbeb3060685c20bcc886d51ahttps://git.kernel.org/stable/c/6b79abcb3c985e153fcf9d395e1d4336081aabc2https://git.kernel.org/stable/c/786e2c2a87d9c505f33321d1fd23a176aa8ddeb1https://git.kernel.org/stable/c/9d678eb0fe55c9195d9a253e8c5b82a87b930737https://git.kernel.org/stable/c/bcf82c0c5a8b383fd2d5d8f3fd880cdcab2ac557https://git.kernel.org/stable/c/e38c55d9f834e5b848bfed0f5c586aaf45acb825