kernfs subsystem


Maintainer(s): gregkh@linuxfoundation.org, tj@kernel.org
Fixed bugs: 32
Parent subsystem(s): fs (145)
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 15h19m 15d
possible deadlock in kernfs_iop_permission (2) prio:low kernfs 4 21 1d08h 28d
possible deadlock in kernfs_remove_by_name_ns (2) prio:high kernfs 4 1062 2h11m 29d
KASAN: slab-use-after-free Read in kernfs_get (4) prio:high actionable kernfs 19 1 44d 40d
possible deadlock in kernfs_fop_write_iter (3) prio:low kernfs 4 8 6d23h 41d
WARNING in __kernfs_new_node prio:high kernfs -1 8 46d 61d
KASAN: slab-use-after-free Read in __kernfs_new_node prio:high actionable kernfs 19 3 47d 62d PATCH [59d]
KASAN: slab-use-after-free Read in kernfs_new_node (2) actionable prio:high kernfs 19 3 95d 79d
INFO: task hung in do_epoll_ctl_file prio:high kernfs 1 syz, C error 10 75d 81d PATCH [31d]
KASAN: slab-use-after-free Read in clear_tfile_check_list prio:high kernfs 19 syz, C 414 70d 86d PATCH [23d]
BUG: unable to handle kernel paging request in kernfs_rename_ns kernfs 8 9 24d 129d
possible deadlock in kernfs_iop_setattr prio:low kernfs 4 16 44d 145d
possible deadlock in kernfs_link_sibling (2) prio:low kernfs 4 7170 1h13m 153d 💬 1 [78d]
possible deadlock in __kernfs_remove (3) prio:high kernfs 4 33 2h57m 172d
KMSAN: uninit-value in inode_set_ctime_to_ts prio:high kernfs 7 42 60d 183d
INFO: rcu detected stall in cleanup_net (8) prio:normal kernfs net 1 syz, C error inconclusive 34 8d02h 216d
possible deadlock in kernfs_unlink_sibling (2) prio:low kernfs 4 2372 7d03h 284d
possible deadlock in kernfs_add_one prio:high kernfs 4 23 70d 376d
possible deadlock in kernfs_remove prio:high kernfs 4 syz, C error done 1793 14h10m 377d 💬 3 [15d]
INFO: rcu detected stall in kernfs_fop_open (7) prio:high kernfs 1 syz, C error error 13 5d06h 384d PATCH [17h21m]
possible deadlock in kernfs_fop_readdir prio:high kernfs 4 232 2d00h 490d
possible deadlock in kernfs_iop_getattr prio:low kernfs 4 syz, C done 8039 5h36m 503d 💬 2 [109d]
INFO: rcu detected stall in sys_readlink (5) prio:normal kernfs 1 syz done error 58 3h21m 668d
INFO: task hung in fdget_pos fs kernfs prio:normal 1 syz, C inconclusive inconclusive 150 14d 677d 💬 1 [15d]
possible deadlock in walk_component (4) kernfs 4 syz, C 79 261d 728d 💬 1 [296d]
INFO: task hung in kernfs_dop_revalidate (4) prio:high kernfs 1 syz, C error error 147 12d 804d
INFO: task hung in kernfs_add_one usb kernfs 1 syz, C error done 103 5d02h 811d
WARNING in kernfs_get (5) prio:high usb kernfs -1 syz inconclusive 753 35d 831d 💬 3 [47d]
possible deadlock in kernfs_seq_start kernfs 4 syz, C done error 600 15m 842d 💬 8 [15d]
INFO: task hung in kernfs_remove_by_name_ns (2) kernfs 1 syz, C 44 21d 1009d
possible deadlock in lookup_slow (3) prio:low kernfs 4 syz, C 514 20h58m 1125d
BUG: MAX_LOCKDEP_ENTRIES too low! (3) no-reminders smc kernfs -1 syz, C unreliable error 469 665d 1369d PATCH [1153d]
WARNING in kernfs_remove_by_name_ns (3) kernfs -1 syz, C error 644 21h09m 1743d 💬 3 [15d]
Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Discussions
BUG: soft lockup in usbdev_ioctl prio:low kernfs 1 1 35d 31d
stack segment fault in kernfs_rename_ns (2) prio:high kernfs 2 4 9d22h 123d PATCH [104d]
KCSAN: data-race in rwsem_down_write_slowpath / rwsem_down_write_slowpath prio:low kernfs 6 89 1d11h 210d
KCSAN: data-race in set_nlink / set_nlink prio:low kernfs 6 1233 10h18m 983d