kernfs subsystem


Maintainer(s): gregkh@linuxfoundation.org, tj@kernel.org
Fixed bugs: 32
Parent subsystem(s): fs (147)
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 26 1d02h 11d
possible deadlock in kernfs_iop_permission (2) kernfs prio:low 4 17 18h08m 24d
possible deadlock in kernfs_remove_by_name_ns (2) kernfs prio:high 4 946 1h47m 25d
KASAN: slab-use-after-free Read in kernfs_get (4) prio:high actionable kernfs 19 1 40d 36d
possible deadlock in kernfs_fop_write_iter (3) prio:low kernfs 4 8 2d18h 36d
WARNING in __kernfs_new_node prio:high kernfs -1 8 42d 57d
KASAN: slab-use-after-free Read in __kernfs_new_node prio:high actionable kernfs 19 3 43d 57d PATCH [55d]
KASAN: slab-use-after-free Read in kernfs_new_node (2) actionable prio:high kernfs 19 3 91d 75d
INFO: task hung in do_epoll_ctl_file prio:high kernfs 1 syz, C error 10 71d 77d PATCH [26d]
KASAN: slab-use-after-free Read in clear_tfile_check_list prio:high kernfs 19 syz, C 414 65d 82d PATCH [19d]
BUG: unable to handle kernel paging request in kernfs_rename_ns kernfs 8 9 19d 125d
possible deadlock in kernfs_iop_setattr prio:low kernfs 4 16 40d 141d
possible deadlock in kernfs_link_sibling (2) prio:low kernfs 4 7127 2h18m 148d 💬 1 [74d]
possible deadlock in __kernfs_remove (3) prio:high kernfs 4 26 21d 168d
KMSAN: uninit-value in inode_set_ctime_to_ts prio:high kernfs 7 42 56d 179d
INFO: rcu detected stall in cleanup_net (8) prio:normal kernfs net 1 syz, C error inconclusive 34 3d21h 211d
possible deadlock in kernfs_unlink_sibling (2) prio:low kernfs 4 2372 2d22h 280d
possible deadlock in kernfs_add_one prio:high kernfs 4 23 66d 372d
possible deadlock in kernfs_remove prio:high kernfs 4 syz, C error done 1781 2h39m 373d 💬 3 [11d]
INFO: rcu detected stall in kernfs_fop_open (7) prio:high kernfs 1 syz, C error error 13 1d01h 380d PATCH [10h45m]
possible deadlock in kernfs_fop_readdir prio:high kernfs 4 231 29d 486d
possible deadlock in kernfs_iop_getattr prio:low kernfs 4 syz, C done 7930 7h35m 499d 💬 2 [105d]
INFO: rcu detected stall in sys_readlink (5) prio:normal kernfs 1 syz done error 56 19h12m 664d
INFO: task hung in fdget_pos fs kernfs prio:normal 1 syz, C inconclusive inconclusive 150 9d21h 673d 💬 1 [11d]
possible deadlock in walk_component (4) kernfs 4 syz, C 79 256d 724d 💬 1 [292d]
INFO: task hung in kernfs_dop_revalidate (4) prio:high kernfs 1 syz, C error error 147 7d23h 800d
INFO: task hung in kernfs_add_one usb kernfs 1 syz, C error done 103 21h44m 807d
WARNING in kernfs_get (5) prio:high usb kernfs -1 syz inconclusive 753 31d 827d 💬 3 [43d]
possible deadlock in kernfs_seq_start kernfs 4 syz, C done error 561 3h38m 838d 💬 8 [11d]
INFO: task hung in kernfs_remove_by_name_ns (2) kernfs 1 syz, C 44 17d 1005d
possible deadlock in lookup_slow (3) prio:low kernfs 4 syz, C 511 2d17h 1120d
BUG: MAX_LOCKDEP_ENTRIES too low! (3) no-reminders smc kernfs -1 syz, C unreliable error 469 661d 1365d PATCH [1148d]
WARNING in kernfs_remove_by_name_ns (3) kernfs -1 syz, C error 640 6d08h 1739d 💬 3 [11d]
Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Discussions
BUG: soft lockup in usbdev_ioctl prio:low kernfs 1 1 31d 27d
BUG: soft lockup in lo_ioctl prio:low kernfs 1 1 89d 85d
stack segment fault in kernfs_rename_ns (2) prio:high kernfs 2 4 5d17h 119d PATCH [100d]
KCSAN: data-race in rwsem_down_write_slowpath / rwsem_down_write_slowpath prio:low kernfs 6 88 3d02h 206d
KCSAN: data-race in set_nlink / set_nlink prio:low kernfs 6 1228 12h09m 979d