Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected a80f7fcf18672ae4971a6b713b58c0d389aa99fe before 23ad034760dd38e12b0e0e1b28b9629f330810a1; affected a80f7fcf18672ae4971a6b713b58c0d389aa99fe before 6220ec405571ded17efedc56587190b542adf246; affected a80f7fcf18672ae4971a6b713b58c0d389aa99fe before 206dd3acfb9bca54a25b228c7c7c2257eedde09b; affected a80f7fcf18672ae4971a6b713b58c0d389aa99fe before 1ba993208bcfd691e241483420a2a761d3f15750; affected a80f7fcf18672ae4971a6b713b58c0d389aa99fe before 4c0d5778385cb3618ff26a561ce41de2b7d9de70 |
| Linux / Linux | affected 5.10; unaffected 0 before 5.10; unaffected 5.10.163 through 5.10.*; unaffected 5.15.87 through 5.15.*; unaffected 6.0.18 through 6.0.*; unaffected 6.1.4 through 6.1.*; unaffected 6.2 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/23ad034760dd38e12b0e0e1b28b9629f330810a1
- https://git.kernel.org/stable/c/6220ec405571ded17efedc56587190b542adf246
- https://git.kernel.org/stable/c/206dd3acfb9bca54a25b228c7c7c2257eedde09b
- https://git.kernel.org/stable/c/1ba993208bcfd691e241483420a2a761d3f15750
- https://git.kernel.org/stable/c/4c0d5778385cb3618ff26a561ce41de2b7d9de70