mptcp: fix scheduling with atomic in timestamp sockopt
3Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackepss 0.1%
exploitation probability
0.1%top 97% of all CVEs
observed exploitation
nono source reports it
In the Linux kernel, the following vulnerability has been resolved:
mptcp: fix scheduling with atomic in timestamp sockopt
Using lock_sock_fast() (atomic context) around sock_set_timestamp()
and sock_set_timestamping() is unsafe, as both helpers can sleep.
Replace lock_sock_fast() with sleepable lock_sock()/release_sock()
to avoid scheduling while atomic panic.
Affected products
Linux · LinuxReferences
https://git.kernel.org/stable/c/0949d8bbbedbafe0136a1723c41eb823c2f1e09dhttps://git.kernel.org/stable/c/7eb513b42721bee4b96da69f6188d5a7783f210dhttps://git.kernel.org/stable/c/8a005fe451c73fd2b3d1faa5643c11e6bd07acfchttps://git.kernel.org/stable/c/b157dab93a7af44a84e78cf0cb311dde475cff5bhttps://git.kernel.org/stable/c/b5c52908d52c6c8eb8933264aa6087a0600fd892https://git.kernel.org/stable/c/e792cfb6aeaf65612cdf8e3ac431d65e66283654https://git.kernel.org/stable/c/ebeb70e29e37cfce899309cc2665a3bfe960ed94