kernfs subsystem


Maintainer(s): gregkh@linuxfoundation.org, tj@kernel.org
Fixed bugs: 32
Parent subsystem(s): fs (150)
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 28 5d05h 24d
possible deadlock in kernfs_iop_permission (2) prio:low kernfs 4 29 1d07h 37d
possible deadlock in kernfs_remove_by_name_ns (2) prio:high kernfs 4 1288 20m 38d
KASAN: slab-use-after-free Read in kernfs_get (4) prio:high actionable kernfs 19 1 53d 49d
possible deadlock in kernfs_fop_write_iter (3) prio:low kernfs 4 8 15d 49d
WARNING in __kernfs_new_node prio:high kernfs -1 8 55d 70d
KASAN: slab-use-after-free Read in __kernfs_new_node prio:high actionable kernfs 19 3 56d 71d PATCH [68d]
INFO: task hung in do_epoll_ctl_file prio:high kernfs 1 syz, C error 10 84d 90d PATCH [39d]
KASAN: slab-use-after-free Read in clear_tfile_check_list prio:high kernfs 19 syz, C 414 79d 95d PATCH [32d]
BUG: unable to handle kernel paging request in kernfs_rename_ns kernfs 8 9 32d 138d
possible deadlock in kernfs_iop_setattr prio:low kernfs 4 16 53d 154d
possible deadlock in kernfs_link_sibling (2) prio:low kernfs 4 7313 20m 161d 💬 1 [87d]
KMSAN: uninit-value in inode_set_ctime_to_ts prio:high kernfs 7 42 69d 192d
INFO: rcu detected stall in cleanup_net (8) prio:normal kernfs net 1 syz, C error inconclusive 35 18h51m 224d
possible deadlock in kernfs_unlink_sibling (2) prio:low kernfs 4 2373 2d13h 293d
possible deadlock in kernfs_add_one prio:high kernfs 4 25 2d01h 385d
possible deadlock in kernfs_remove prio:high kernfs 4 syz, C error done 1815 5h25m 386d 💬 3 [24d]
INFO: rcu detected stall in kernfs_fop_open (7) prio:high kernfs 1 syz, C error error 14 5d20h 393d PATCH [1d18h]
possible deadlock in kernfs_fop_readdir prio:high kernfs 4 235 1d02h 499d
possible deadlock in kernfs_iop_getattr prio:low kernfs 4 syz, C done 8095 29m 512d 💬 2 [118d]
INFO: rcu detected stall in sys_readlink (5) prio:normal kernfs 1 syz done error 60 6d08h 677d
INFO: task hung in fdget_pos fs kernfs prio:normal 1 syz, C inconclusive inconclusive 156 17h56m 686d 💬 1 [24d]
possible deadlock in walk_component (4) kernfs 4 syz, C 79 269d 737d 💬 1 [305d]
INFO: task hung in kernfs_dop_revalidate (4) prio:high kernfs 1 syz, C error error 147 21d 813d
INFO: task hung in kernfs_add_one usb kernfs 1 syz, C error done 104 7d06h 820d
WARNING in kernfs_get (5) prio:high kernfs -1 syz inconclusive 753 44d 840d 💬 3 [56d]
possible deadlock in kernfs_seq_start kernfs 4 syz, C done error 699 1h11m 851d 💬 8 [24d]
INFO: task hung in kernfs_remove_by_name_ns (2) kernfs 1 syz, C 44 30d 1018d
INFO: rcu detected stall in sys_unshare (9) prio:high kernfs 1 syz, C inconclusive done 177 1d04h 1019d 💬 1 [32d]
possible deadlock in lookup_slow (3) prio:low kernfs 4 syz, C 517 2d08h 1134d
BUG: MAX_LOCKDEP_ENTRIES too low! (3) no-reminders smc kernfs -1 syz, C unreliable error 469 674d 1378d PATCH [1161d]
WARNING in kernfs_remove_by_name_ns (3) kernfs -1 syz, C error 646 6h43m 1752d 💬 3 [24d]
Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Discussions
BUG: soft lockup in usbdev_ioctl prio:low kernfs 1 1 44d 40d
stack segment fault in kernfs_rename_ns (2) prio:high kernfs 2 4 18d 132d PATCH [113d]
KCSAN: data-race in rwsem_down_write_slowpath / rwsem_down_write_slowpath prio:low kernfs 6 89 10d 219d
KCSAN: data-race in set_nlink / set_nlink prio:low kernfs 6 1244 19h19m 992d