kernfs subsystem


Maintainer(s): gregkh@linuxfoundation.org, tj@kernel.org
Fixed bugs: 32
Parent subsystem(s): fs (151)
Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Discussions
INFO: rcu detected stall in netlink_sendmsg (6) prio:low kernfs 1 syz, C error 28 6d06h 25d
possible deadlock in kernfs_iop_permission (2) prio:low kernfs 4 32 6h22m 38d
possible deadlock in kernfs_remove_by_name_ns (2) prio:high kernfs 4 1332 8m 39d
KASAN: slab-use-after-free Read in kernfs_get (4) prio:high actionable kernfs 19 1 54d 50d
possible deadlock in kernfs_fop_write_iter (3) prio:low kernfs 4 8 16d 51d
WARNING in __kernfs_new_node prio:high kernfs -1 8 56d 71d
KASAN: slab-use-after-free Read in __kernfs_new_node prio:high actionable kernfs 19 3 57d 72d PATCH [69d]
INFO: task hung in do_epoll_ctl_file prio:high kernfs 1 syz, C error 10 85d 91d PATCH [41d]
KASAN: slab-use-after-free Read in clear_tfile_check_list prio:high kernfs 19 syz, C 414 80d 96d PATCH [33d]
BUG: unable to handle kernel paging request in kernfs_rename_ns kernfs 8 9 34d 139d
possible deadlock in kernfs_iop_setattr prio:low kernfs 4 16 54d 155d
possible deadlock in kernfs_link_sibling (2) prio:low kernfs 4 C 7334 1h28m 162d 💬 4 [3h59m]
INFO: rcu detected stall in cleanup_net (8) prio:normal kernfs net 1 syz, C error inconclusive 36 22h07m 225d
possible deadlock in kernfs_unlink_sibling (2) prio:low kernfs 4 2373 3d14h 294d
possible deadlock in kernfs_add_one prio:high kernfs 4 26 18h51m 386d
possible deadlock in kernfs_remove prio:high kernfs 4 syz, C error done 1825 20m 387d 💬 3 [25d]
INFO: rcu detected stall in kernfs_fop_open (7) prio:high kernfs 1 syz, C error error 14 6d22h 394d PATCH [2d19h]
possible deadlock in kernfs_fop_readdir prio:high kernfs 4 236 20h17m 500d
possible deadlock in kernfs_iop_getattr prio:low kernfs 4 syz, C done 8095 1d01h 513d 💬 2 [119d]
INFO: rcu detected stall in sys_readlink (5) prio:normal kernfs 1 syz done error 60 7d09h 678d
INFO: task hung in fdget_pos fs kernfs prio:normal 1 syz, C inconclusive inconclusive 157 11h06m 687d 💬 1 [25d]
possible deadlock in walk_component (4) kernfs 4 syz, C 79 270d 738d 💬 1 [306d]
INFO: task hung in kernfs_dop_revalidate (4) prio:high kernfs 1 syz, C error error 147 22d 814d
INFO: task hung in kernfs_add_one usb kernfs 1 syz, C error done 104 8d07h 821d
WARNING in kernfs_get (5) prio:high kernfs -1 syz inconclusive 753 45d 841d 💬 3 [57d]
possible deadlock in kernfs_seq_start kernfs 4 syz, C done error 713 3h41m 852d 💬 8 [25d]
INFO: task hung in kernfs_remove_by_name_ns (2) kernfs 1 syz, C 44 31d 1019d
INFO: rcu detected stall in sys_unshare (9) prio:high kernfs 1 syz, C inconclusive done 177 2d05h 1020d 💬 1 [33d]
possible deadlock in lookup_slow (3) prio:low kernfs 4 syz, C 517 3d09h 1135d
BUG: MAX_LOCKDEP_ENTRIES too low! (3) no-reminders smc kernfs -1 syz, C unreliable error 469 675d 1379d PATCH [1162d]
WARNING in kernfs_remove_by_name_ns (3) kernfs -1 syz, C error 646 1d07h 1753d 💬 3 [25d]
Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Discussions
BUG: soft lockup in usbdev_ioctl prio:low kernfs 1 1 45d 41d
stack segment fault in kernfs_rename_ns (2) prio:high kernfs 2 4 19d 133d PATCH [114d]
KCSAN: data-race in rwsem_down_write_slowpath / rwsem_down_write_slowpath prio:low kernfs 6 90 17h12m 220d
KCSAN: data-race in set_nlink / set_nlink prio:low kernfs 6 1245 11h33m 993d