inotify: Avoid reporting event with invalid wd
3Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackepss 0.2%
exploitation probability
0.2%top 88% of all CVEs
observed exploitation
nono source reports it
In the Linux kernel, the following vulnerability has been resolved:
inotify: Avoid reporting event with invalid wd
When inotify_freeing_mark() races with inotify_handle_inode_event() it
can happen that inotify_handle_inode_event() sees that i_mark->wd got
already reset to -1 and reports this value to userspace which can
confuse the inotify listener. Avoid the problem by validating that wd is
sensible (and pretend the mark got removed before the event got
generated otherwise).
Affected products
Linux · LinuxReferences
https://git.kernel.org/stable/c/145f54ea336b06cf4f92eeee996f2ffca939ea43https://git.kernel.org/stable/c/17ad86d8c12220de97e80d88b5b4c934a40e1812https://git.kernel.org/stable/c/2d65c97777e5b4a845637800d5d7b648f5772106https://git.kernel.org/stable/c/8fb33166aed888769ea63d6af49515893f8a1f14https://git.kernel.org/stable/c/a48bacee05860c6089c3482bcdc80720b0ee5732https://git.kernel.org/stable/c/c915d8f5918bea7c3962b09b8884ca128bfd9b0chttps://git.kernel.org/stable/c/fb3294998489d39835006240e9c6e6b2ac62022e