kernfs subsystem


Maintainer(s): gregkh@linuxfoundation.org, tj@kernel.org
Fixed bugs: 32
Parent subsystem(s): fs (149)
Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Discussions
INFO: rcu detected stall in netlink_sendmsg (6) prio:low mm kernfs 1 syz, C error 27 2d13h 17d
possible deadlock in kernfs_iop_permission (2) prio:low kernfs 4 22 15h00m 30d
possible deadlock in kernfs_remove_by_name_ns (2) prio:high kernfs 4 1095 10m 31d
KASAN: slab-use-after-free Read in kernfs_get (4) prio:high actionable kernfs 19 1 46d 42d
possible deadlock in kernfs_fop_write_iter (3) prio:low kernfs 4 8 8d21h 43d
WARNING in __kernfs_new_node prio:high kernfs -1 8 48d 63d
KASAN: slab-use-after-free Read in __kernfs_new_node prio:high actionable kernfs 19 3 49d 64d PATCH [61d]
KASAN: slab-use-after-free Read in kernfs_new_node (2) actionable prio:high kernfs 19 3 97d 81d
INFO: task hung in do_epoll_ctl_file prio:high kernfs 1 syz, C error 10 77d 83d PATCH [33d]
KASAN: slab-use-after-free Read in clear_tfile_check_list prio:high kernfs 19 syz, C 414 72d 88d PATCH [25d]
BUG: unable to handle kernel paging request in kernfs_rename_ns kernfs 8 9 26d 131d
possible deadlock in kernfs_iop_setattr prio:low kernfs 4 16 46d 147d
possible deadlock in kernfs_link_sibling (2) prio:low kernfs 4 7195 4h32m 154d 💬 1 [80d]
possible deadlock in __kernfs_remove (3) prio:high kernfs 4 73 6h36m 174d
KMSAN: uninit-value in inode_set_ctime_to_ts prio:high kernfs 7 42 62d 185d
INFO: rcu detected stall in cleanup_net (8) prio:normal kernfs net 1 syz, C error inconclusive 34 10d 217d
possible deadlock in kernfs_unlink_sibling (2) prio:low kernfs 4 2372 9d01h 286d
possible deadlock in kernfs_add_one prio:high kernfs 4 23 72d 378d
possible deadlock in kernfs_remove prio:high kernfs 4 syz, C error done 1799 5h59m 379d 💬 3 [17d]
INFO: rcu detected stall in kernfs_fop_open (7) prio:high kernfs 1 syz, C error error 13 7d04h 386d PATCH [7h59m]
possible deadlock in kernfs_fop_readdir prio:high kernfs 4 232 3d22h 492d
possible deadlock in kernfs_iop_getattr prio:low kernfs 4 syz, C done 8046 1d19h 505d 💬 2 [111d]
INFO: rcu detected stall in sys_readlink (5) prio:normal kernfs 1 syz done error 59 7h18m 670d
INFO: task hung in fdget_pos fs kernfs prio:normal 1 syz, C inconclusive inconclusive 150 16d 679d 💬 1 [17d]
possible deadlock in walk_component (4) kernfs 4 syz, C 79 263d 730d 💬 1 [298d]
INFO: task hung in kernfs_dop_revalidate (4) prio:high kernfs 1 syz, C error error 147 14d 806d
INFO: task hung in kernfs_add_one usb kernfs 1 syz, C error done 104 9h05m 813d
WARNING in kernfs_get (5) prio:high usb kernfs -1 syz inconclusive 753 37d 833d 💬 3 [49d]
possible deadlock in kernfs_seq_start kernfs 4 syz, C done error 620 11h53m 844d 💬 8 [17d]
INFO: task hung in kernfs_remove_by_name_ns (2) kernfs 1 syz, C 44 23d 1011d
possible deadlock in lookup_slow (3) prio:low kernfs 4 syz, C 515 7h28m 1127d
BUG: MAX_LOCKDEP_ENTRIES too low! (3) no-reminders smc kernfs -1 syz, C unreliable error 469 667d 1371d PATCH [1155d]
WARNING in kernfs_remove_by_name_ns (3) kernfs -1 syz, C error 644 2d19h 1745d 💬 3 [17d]
Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Discussions
BUG: soft lockup in usbdev_ioctl prio:low kernfs 1 1 37d 33d
stack segment fault in kernfs_rename_ns (2) prio:high kernfs 2 4 11d 125d PATCH [106d]
KCSAN: data-race in rwsem_down_write_slowpath / rwsem_down_write_slowpath prio:low kernfs 6 89 3d09h 212d
KCSAN: data-race in set_nlink / set_nlink prio:low kernfs 6 1236 5h06m 985d