aio: fix mremap after fork null-deref
3Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackepss 0.2%
exploitation probability
0.2%top 86% of all CVEs
observed exploitation
nono source reports it
In the Linux kernel, the following vulnerability has been resolved:
aio: fix mremap after fork null-deref
Commit e4a0d3e720e7 ("aio: Make it possible to remap aio ring") introduced
a null-deref if mremap is called on an old aio mapping after fork as
mm->ioctx_table will be set to NULL.
[jmoyer@redhat.com: fix 80 column issue]
Affected products
Linux · LinuxReferences
https://git.kernel.org/stable/c/178993157e8c50aef7f35d7d6d3b44bb428199e1https://git.kernel.org/stable/c/4326d0080f7e84fba775da41d158f46cf9d3f1c2https://git.kernel.org/stable/c/808f1e4b5723ae4eda724d2ad6f6638905eefd95https://git.kernel.org/stable/c/81e9d6f8647650a7bead74c5f926e29970e834d1https://git.kernel.org/stable/c/af126acf01a12bdb04986fd26fc2eb3b40249e0dhttps://git.kernel.org/stable/c/c261f798f7baa8080cf0214081d43d5f86bb073fhttps://git.kernel.org/stable/c/d8dca1bfe9adcae38b35add64977818c0c13dd22