Description
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 products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
9ff05123e3bfbb1d2b68ba1d9bf1f7d1dffc1453 to < e3e9367dae1a6392cbb14ab0b2ab5edbf39735c3affected9ff05123e3bfbb1d2b68ba1d9bf1f7d1dffc1453 to < 217b967ad7887a3e1ebc08f46f6484e081acd4b4affected9ff05123e3bfbb1d2b68ba1d9bf1f7d1dffc1453 to < 3bcdbdaac884a4baa59716cf9bd9470c75276e2daffected9ff05123e3bfbb1d2b68ba1d9bf1f7d1dffc1453 to < d7afca8e4efbf4c455b4663c29ae59fde2f1b671affected9ff05123e3bfbb1d2b68ba1d9bf1f7d1dffc1453 to < c07e5ad6539e7e9350d5c65cbf8adb69d1711b15affected9ff05123e3bfbb1d2b68ba1d9bf1f7d1dffc1453 to < 1fc6df85b4954b6fda9c351843aaca3c06f66d8daffected9ff05123e3bfbb1d2b68ba1d9bf1f7d1dffc1453 to < 8cea0bc78ac64cb88da49c07f80bf2cf9fb7aff8affected9ff05123e3bfbb1d2b68ba1d9bf1f7d1dffc1453 to < ce5a5ad1a8330a2fcfdd9ec2ab341be739e89a18affected
Linux Linux
Default version status: affected
2.6.30affected0 to < 2.6.30unaffected5.10.270 to ≤ 5.10.*unaffected5.15.221 to ≤ 5.15.*unaffected6.1.188 to ≤ 6.1.*unaffected6.6.157 to ≤ 6.6.*unaffected6.12.110 to ≤ 6.12.*unaffected6.18.52 to ≤ 6.18.*unaffected7.2.6 to ≤ 7.2.*unaffected7.3 to ≤ *unaffected
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 ↗