CVE-2026-90420

UNKNOWN 0.0

nilfs2: fix infinite loop in nilfs_clean_segments()

CVSS Score

0.0

EPSS Score

0.0%

EPSS Percentile

0th

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.

Vendor	linux
Product	linux
Ecosystems	Linux Kernel
Industries	Technology
Published	Sep 17, 2026

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Affected Versions

Linux / Linux

9ff05123e3bfbb1d2b68ba1d9bf1f7d1dffc1453 < e3e9367dae1a6392cbb14ab0b2ab5edbf39735c3 9ff05123e3bfbb1d2b68ba1d9bf1f7d1dffc1453 < 217b967ad7887a3e1ebc08f46f6484e081acd4b4 9ff05123e3bfbb1d2b68ba1d9bf1f7d1dffc1453 < 3bcdbdaac884a4baa59716cf9bd9470c75276e2d 9ff05123e3bfbb1d2b68ba1d9bf1f7d1dffc1453 < d7afca8e4efbf4c455b4663c29ae59fde2f1b671 9ff05123e3bfbb1d2b68ba1d9bf1f7d1dffc1453 < c07e5ad6539e7e9350d5c65cbf8adb69d1711b15 9ff05123e3bfbb1d2b68ba1d9bf1f7d1dffc1453 < 1fc6df85b4954b6fda9c351843aaca3c06f66d8d 9ff05123e3bfbb1d2b68ba1d9bf1f7d1dffc1453 < 8cea0bc78ac64cb88da49c07f80bf2cf9fb7aff8 9ff05123e3bfbb1d2b68ba1d9bf1f7d1dffc1453 < ce5a5ad1a8330a2fcfdd9ec2ab341be739e89a18

Linux / Linux

2.6.30

References

NVD ↗ CVE.org ↗ EPSS Data ↗