kernfs subsystem


Maintainer(s): gregkh@linuxfoundation.org, tj@kernel.org
Fixed bugs: 32
Parent subsystem(s): fs (143)
Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Discussions
possible deadlock in location_store kernfs prio:low 4 syz, C 24 2d17h 3d21h
INFO: rcu detected stall in kernfs_fop_release (3) kernfs prio:normal 1 syz, C error 1 8d10h 4d10h
stack segment fault in kernfs_rename_ns (2) prio:high kernfs 2 6 15h41m 5d00h PATCH [125d]
WARNING in generic_access_phys kernfs prio:low -1 syz, C 16 7d07h 8d03h
possible deadlock in nvmf_dev_show prio:low kernfs 4 103 12h01m 32d
possible deadlock in autofs_notify_daemon (3) prio:low kernfs 4 11 1d01h 32d
INFO: rcu detected stall in netlink_sendmsg (6) prio:low kernfs 1 syz, C error 33 9h43m 36d
possible deadlock in kernfs_iop_permission (2) prio:low kernfs 4 42 10h22m 50d
possible deadlock in kernfs_remove_by_name_ns (2) prio:high kernfs 4 1810 10m 50d
KASAN: slab-use-after-free Read in kernfs_get (4) prio:high actionable kernfs 19 1 65d 61d
possible deadlock in kernfs_fop_write_iter (3) prio:low kernfs 4 11 1d05h 62d
WARNING in __kernfs_new_node prio:high kernfs -1 8 67d 82d
KASAN: slab-use-after-free Read in __kernfs_new_node prio:high actionable kernfs 19 3 68d 83d PATCH [80d]
KASAN: slab-use-after-free Read in clear_tfile_check_list prio:high kernfs 19 syz, C 414 91d 107d PATCH [44d]
BUG: unable to handle kernel paging request in kernfs_rename_ns kernfs prio:high 8 9 45d 150d
possible deadlock in kernfs_iop_setattr prio:low kernfs 4 19 5d15h 166d
possible deadlock in kernfs_link_sibling (2) prio:low kernfs 4 C 7573 43m 174d 💬 4 [11d]
INFO: rcu detected stall in cleanup_net (8) prio:normal kernfs net 1 syz, C error inconclusive 37 8d06h 237d
possible deadlock in kernfs_unlink_sibling (2) prio:low kernfs 4 2377 30m 305d
possible deadlock in kernfs_add_one prio:high kernfs 4 27 1d22h 397d
possible deadlock in kernfs_remove prio:high kernfs 4 syz, C error done 1882 2h18m 399d 💬 3 [5d21h]
INFO: rcu detected stall in kernfs_fop_open (7) prio:high kernfs 1 syz, C error error 15 9d18h 405d PATCH [4d17h]
possible deadlock in kernfs_fop_readdir prio:high kernfs 4 240 1d07h 512d
possible deadlock in kernfs_iop_getattr prio:low kernfs 4 syz, C done 8199 59m 524d 💬 2 [130d]
INFO: rcu detected stall in sys_readlink (5) prio:normal kernfs 1 syz done error 62 3d16h 689d
INFO: task hung in fdget_pos fs kernfs prio:normal 1 syz, C inconclusive inconclusive 169 6h49m 698d 💬 1 [5d21h]
possible deadlock in walk_component (4) kernfs 4 syz, C 79 282d 749d 💬 1 [317d]
INFO: task hung in kernfs_dop_revalidate (4) prio:high kernfs 1 syz, C error error 148 1d15h 825d
INFO: task hung in kernfs_add_one usb kernfs 1 syz, C error done 104 19d 832d
WARNING in kernfs_get (5) prio:high kernfs -1 syz inconclusive 753 56d 852d 💬 3 [68d]
possible deadlock in kernfs_seq_start kernfs prio:low 4 syz, C done error 795 6h40m 863d 💬 8 [5d21h]
INFO: task hung in kernfs_remove_by_name_ns (2) kernfs 1 syz, C 44 42d 1030d
INFO: rcu detected stall in sys_unshare (9) prio:high kernfs 1 syz, C inconclusive done 180 3d09h 1031d 💬 1 [5d21h]
possible deadlock in lookup_slow (3) prio:low kernfs 4 syz, C unreliable 526 1d19h 1146d
BUG: MAX_LOCKDEP_ENTRIES too low! (3) no-reminders smc kernfs -1 syz, C unreliable error 469 686d 1390d PATCH [1174d]
WARNING in kernfs_remove_by_name_ns (3) kernfs -1 syz, C error 655 43m 1764d 💬 3 [5d21h]
Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Discussions
BUG: soft lockup in usbdev_ioctl prio:low kernfs 1 1 56d 52d
KCSAN: data-race in rwsem_down_write_slowpath / rwsem_down_write_slowpath prio:low kernfs 6 94 3d00h 231d
KCSAN: data-race in set_nlink / set_nlink prio:low kernfs 6 1250 2d07h 1004d