Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: ext4: don't set up encryption key during jbd2 transaction Commit a80f7fcf1867 ("ext4: fixup ext4_fc_track_* functions' signature") extended the scope of the transaction in ext4_unlink() too far, making it include the call to ext4_find_entry(). However, ext4_find_entry() can deadlock when called from within a transaction because it may need to set up the directory's encryption key. Fix this by restoring the transaction to its original scope.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 5.10.1, < 5.10.163 |
References
- https://git.kernel.org/stable/c/1ba993208bcfd691e241483420a2a761d3f15750Patch
- https://git.kernel.org/stable/c/206dd3acfb9bca54a25b228c7c7c2257eedde09bPatch
- https://git.kernel.org/stable/c/23ad034760dd38e12b0e0e1b28b9629f330810a1Patch
- https://git.kernel.org/stable/c/4c0d5778385cb3618ff26a561ce41de2b7d9de70Patch
- https://git.kernel.org/stable/c/6220ec405571ded17efedc56587190b542adf246Patch
FAQ
What is CVE-2022-50436?
CVE-2022-50436 is a vulnerability with a CVSS score of 5.5 (MEDIUM). In the Linux kernel, the following vulnerability has been resolved: ext4: don't set up encryption key during jbd2 transaction Commit a80f7fcf1867 ("ext4: fixup ext4_fc_track_* functions' signature")...
How severe is CVE-2022-50436?
CVE-2022-50436 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2022-50436?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.