kernfs subsystem


Maintainer(s): gregkh@linuxfoundation.org, tj@kernel.org
Fixed bugs: 31
Parent subsystem(s): fs (144)
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 17 1d21h 11h33m
possible deadlock in kernfs_iop_permission (2) kernfs prio:low 4 13 10h48m 13d
possible deadlock in kernfs_remove_by_name_ns (2) kernfs prio:high 4 634 now 14d
KASAN: slab-use-after-free Read in kernfs_get (4) kernfs prio:high actionable 19 1 29d 25d
possible deadlock in kernfs_fop_write_iter (3) kernfs prio:low 4 4 18d 25d
WARNING in __kernfs_new_node prio:high kernfs -1 8 31d 46d
KASAN: slab-use-after-free Read in __kernfs_new_node prio:high actionable kernfs 19 3 32d 46d PATCH [44d]
KASAN: slab-use-after-free Read in kernfs_new_node (2) actionable prio:high kernfs 19 3 80d 64d
INFO: task hung in do_epoll_ctl_file prio:high kernfs 1 syz, C error 10 60d 66d PATCH [15d]
KASAN: slab-use-after-free Read in clear_tfile_check_list prio:high kernfs 19 syz, C 414 54d 71d PATCH [8d09h]
BUG: unable to handle kernel paging request in kernfs_rename_ns kernfs 8 9 8d21h 114d
possible deadlock in kernfs_iop_setattr prio:low kernfs 4 16 29d 129d
possible deadlock in kernfs_link_sibling (2) prio:low kernfs 4 6904 1h10m 137d 💬 1 [63d]
possible deadlock in __kernfs_remove (3) prio:high kernfs 4 26 10d 157d
KMSAN: uninit-value in inode_set_ctime_to_ts prio:high kernfs 7 42 45d 168d
INFO: rcu detected stall in cleanup_net (8) prio:normal kernfs net 1 syz, C error inconclusive 33 35d 200d
INFO: task hung in do_rmdir (7) prio:high kernfs 1 syz, C error error 3 200d 210d PATCH [4h33m]
possible deadlock in kernfs_unlink_sibling (2) prio:low kernfs 4 2370 1d04h 269d
possible deadlock in kernfs_add_one prio:high kernfs 4 23 55d 361d
possible deadlock in kernfs_remove prio:high kernfs 4 syz, C error done 1735 52m 362d 💬 3 [11h33m]
INFO: rcu detected stall in kernfs_fop_open (7) prio:high kernfs 1 syz, C error error 12 6d00h 369d
INFO: task hung in sb_start_write (2) prio:high kernfs 1 131 12d 436d
possible deadlock in kernfs_fop_readdir prio:high kernfs 4 231 18d 475d
possible deadlock in kernfs_iop_getattr prio:low kernfs 4 syz, C done 7608 23m 488d 💬 2 [94d]
INFO: rcu detected stall in sys_readlink (5) prio:normal kernfs 1 syz done error 55 15d 653d
INFO: task hung in fdget_pos fs kernfs prio:normal 1 syz, C inconclusive inconclusive 146 2d15h 662d 💬 1 [11h33m]
possible deadlock in walk_component (4) kernfs 4 syz, C 79 245d 713d 💬 1 [281d]
INFO: task hung in kernfs_dop_revalidate (4) prio:high kernfs 1 syz, C error error 146 4d09h 788d
INFO: task hung in kernfs_add_one usb kernfs 1 syz, C error done 102 15d 796d
WARNING in kernfs_get (5) prio:high usb kernfs -1 syz inconclusive 753 20d 816d 💬 3 [31d]
possible deadlock in kernfs_seq_start kernfs 4 syz, C done error 502 1d03h 827d 💬 8 [11h33m]
INFO: task hung in kernfs_remove_by_name_ns (2) kernfs 1 syz, C 44 6d00h 994d
possible deadlock in lookup_slow (3) prio:low kernfs 4 syz, C 497 14h04m 1109d
BUG: MAX_LOCKDEP_ENTRIES too low! (3) no-reminders smc kernfs -1 syz, C unreliable error 469 650d 1354d PATCH [1137d]
WARNING in kernfs_remove_by_name_ns (3) kernfs -1 syz, C error 639 2d15h 1728d 💬 3 [11h33m]
Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Discussions
BUG: soft lockup in usbdev_ioctl kernfs prio:low 1 1 20d 16d
BUG: soft lockup in lo_ioctl prio:low kernfs 1 1 78d 74d
stack segment fault in kernfs_rename_ns (2) prio:high kernfs 2 2 29d 108d PATCH [89d]
KCSAN: data-race in rwsem_down_write_slowpath / rwsem_down_write_slowpath prio:low kernfs 6 85 1h44m 195d
KCSAN: data-race in set_nlink / set_nlink prio:low kernfs 6 1213 18h48m 968d