CVE-2022-50436
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()…
Does this matter?
Lower severity and a low EPSS score (0.10%). Track it; it rarely justifies an emergency change on its own.
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 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.10% probability · 1th percentile
- CISA KEV
- Not listed
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
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
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.