kernfs subsystem


Maintainer(s): gregkh@linuxfoundation.org, tj@kernel.org
Fixed bugs: 32
Parent subsystem(s): fs (142)
Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Discussions
possible deadlock in location_store kernfs prio:low 4 syz, C 24 1d06h 2d09h
INFO: rcu detected stall in kernfs_fop_release (3) kernfs prio:normal 1 syz, C error 1 6d23h 2d23h
stack segment fault in kernfs_rename_ns (2) prio:high kernfs 2 5 3d13h 3d13h PATCH [124d]
WARNING in generic_access_phys kernfs prio:low -1 syz, C 16 5d19h 6d15h
possible deadlock in nvmf_dev_show prio:low kernfs 4 102 1d14h 30d
possible deadlock in autofs_notify_daemon (3) prio:low kernfs 4 10 2d17h 31d
INFO: rcu detected stall in netlink_sendmsg (6) prio:low kernfs 1 syz, C error 31 3d22h 35d
possible deadlock in kernfs_iop_permission (2) prio:low kernfs 4 40 49m 48d
possible deadlock in kernfs_remove_by_name_ns (2) prio:high kernfs 4 1728 now 48d
KASAN: slab-use-after-free Read in kernfs_get (4) prio:high actionable kernfs 19 1 64d 60d
possible deadlock in kernfs_fop_write_iter (3) prio:low kernfs 4 10 1h44m 60d
WARNING in __kernfs_new_node prio:high kernfs -1 8 66d 81d
KASAN: slab-use-after-free Read in __kernfs_new_node prio:high actionable kernfs 19 3 67d 81d PATCH [79d]
KASAN: slab-use-after-free Read in clear_tfile_check_list prio:high kernfs 19 syz, C 414 89d 106d PATCH [43d]
BUG: unable to handle kernel paging request in kernfs_rename_ns kernfs prio:high 8 9 43d 149d
possible deadlock in kernfs_iop_setattr prio:low kernfs 4 19 4d03h 164d
possible deadlock in kernfs_link_sibling (2) prio:low kernfs 4 C 7528 1h36m 172d 💬 4 [9d20h]
INFO: rcu detected stall in cleanup_net (8) prio:normal kernfs net 1 syz, C error inconclusive 37 6d19h 235d
possible deadlock in kernfs_unlink_sibling (2) prio:low kernfs 4 2376 4d00h 304d
possible deadlock in kernfs_add_one prio:high kernfs 4 27 11h08m 395d
possible deadlock in kernfs_remove prio:high kernfs 4 syz, C error done 1876 34m 397d 💬 3 [4d10h]
INFO: rcu detected stall in kernfs_fop_open (7) prio:high kernfs 1 syz, C error error 15 8d07h 404d PATCH [3d06h]
possible deadlock in kernfs_fop_readdir prio:high kernfs 4 239 2d02h 510d
possible deadlock in kernfs_iop_getattr prio:low kernfs 4 syz, C done 8198 9h59m 522d 💬 2 [129d]
INFO: rcu detected stall in sys_readlink (5) prio:normal kernfs 1 syz done error 62 2d04h 687d
INFO: task hung in fdget_pos fs kernfs prio:normal 1 syz, C inconclusive inconclusive 167 5d00h 696d 💬 1 [4d10h]
possible deadlock in walk_component (4) kernfs 4 syz, C 79 280d 748d 💬 1 [316d]
INFO: task hung in kernfs_dop_revalidate (4) prio:high kernfs 1 syz, C error error 148 3h35m 823d
INFO: task hung in kernfs_add_one usb kernfs 1 syz, C error done 104 18d 831d
WARNING in kernfs_get (5) prio:high kernfs -1 syz inconclusive 753 55d 850d 💬 3 [66d]
possible deadlock in kernfs_seq_start kernfs prio:low 4 syz, C done error 790 3h20m 861d 💬 8 [4d10h]
INFO: task hung in kernfs_remove_by_name_ns (2) kernfs 1 syz, C 44 40d 1028d
INFO: rcu detected stall in sys_unshare (9) prio:high kernfs 1 syz, C inconclusive done 180 1d21h 1030d 💬 1 [4d10h]
possible deadlock in lookup_slow (3) prio:low kernfs 4 syz, C 526 8h32m 1144d
BUG: MAX_LOCKDEP_ENTRIES too low! (3) no-reminders smc kernfs -1 syz, C unreliable error 469 685d 1389d PATCH [1172d]
WARNING in kernfs_remove_by_name_ns (3) kernfs -1 syz, C error 653 12h39m 1762d 💬 3 [4d10h]
Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Discussions
BUG: soft lockup in usbdev_ioctl prio:low kernfs 1 1 54d 50d
KCSAN: data-race in rwsem_down_write_slowpath / rwsem_down_write_slowpath prio:low kernfs 6 94 1d13h 230d
KCSAN: data-race in set_nlink / set_nlink prio:low kernfs 6 1250 19h51m 1003d