Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: nilfs2: fix infinite loop in nilfs_clean_segments() syzbot reported a hung task in nilfs_transaction_begin(). This occurs because the cleaner ioctl falls into an infinite loop if nilfs_segctor_construct() repeatedly returns -EROFS (e.g. the device is remounted as read-only after an I/O error). Currently in nilfs_clean_segments(), if err is non-zero, it logs the error and sleeps but doesn't abort when it encounters a terminal error like -EROFS. This causes the thread to loop forever. Fix this by breaking out of the loop if nilfs_segctor_construct() returns -EROFS. This matches the behaviour in nilfs_segctor_write_out(), which also handles -EROFS.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 9ff05123e3bfbb1d2b68ba1d9bf1f7d1dffc1453 before e3e9367dae1a6392cbb14ab0b2ab5edbf39735c3; affected 9ff05123e3bfbb1d2b68ba1d9bf1f7d1dffc1453 before 217b967ad7887a3e1ebc08f46f6484e081acd4b4; affected 9ff05123e3bfbb1d2b68ba1d9bf1f7d1dffc1453 before 3bcdbdaac884a4baa59716cf9bd9470c75276e2d; affected 9ff05123e3bfbb1d2b68ba1d9bf1f7d1dffc1453 before d7afca8e4efbf4c455b4663c29ae59fde2f1b671; affected 9ff05123e3bfbb1d2b68ba1d9bf1f7d1dffc1453 before c07e5ad6539e7e9350d5c65cbf8adb69d1711b15; affected 9ff05123e3bfbb1d2b68ba1d9bf1f7d1dffc1453 before 1fc6df85b4954b6fda9c351843aaca3c06f66d8d; affected 9ff05123e3bfbb1d2b68ba1d9bf1f7d1dffc1453 before 8cea0bc78ac64cb88da49c07f80bf2cf9fb7aff8; affected 9ff05123e3bfbb1d2b68ba1d9bf1f7d1dffc1453 before ce5a5ad1a8330a2fcfdd9ec2ab341be739e89a18 |
| Linux / Linux | affected 2.6.30; unaffected 0 before 2.6.30; unaffected 5.10.270 through 5.10.*; unaffected 5.15.221 through 5.15.*; unaffected 6.1.188 through 6.1.*; unaffected 6.6.157 through 6.6.*; unaffected 6.12.110 through 6.12.*; unaffected 6.18.52 through 6.18.*; unaffected 7.2.6 through 7.2.*; unaffected 7.3 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/e3e9367dae1a6392cbb14ab0b2ab5edbf39735c3
- https://git.kernel.org/stable/c/217b967ad7887a3e1ebc08f46f6484e081acd4b4
- https://git.kernel.org/stable/c/3bcdbdaac884a4baa59716cf9bd9470c75276e2d
- https://git.kernel.org/stable/c/d7afca8e4efbf4c455b4663c29ae59fde2f1b671
- https://git.kernel.org/stable/c/c07e5ad6539e7e9350d5c65cbf8adb69d1711b15
- https://git.kernel.org/stable/c/1fc6df85b4954b6fda9c351843aaca3c06f66d8d
- https://git.kernel.org/stable/c/8cea0bc78ac64cb88da49c07f80bf2cf9fb7aff8
- https://git.kernel.org/stable/c/ce5a5ad1a8330a2fcfdd9ec2ab341be739e89a18