WARNING in sysfs_warn

Kernel	Title	Repro	Count	Last	Reported	Patched	Status
linux-4.19	WARNING in sysfs_warn_dup (2)		1	1178d	1178d	0/1	auto-closed as invalid on 2021/07/09 11:24
linux-4.14	WARNING in sysfs_warn_dup gfs2	C	4771	452d	1878d	0/1	upstream: reported C repro on 2019/04/11 12:48
upstream	WARNING in sysfs_warn_dup fs		11	2313d	2356d	4/26	fixed on 2018/02/04 23:45

sysfs: cannot create duplicate filename '/class/ieee80211/M!Ь)vСSґ' ------------[ cut here ]------------ CPU: 0 PID: 20688 Comm: syz-executor.0 Not tainted 4.19.146-syzkaller #0 WARNING: CPU: 1 PID: 20654 at fs/f2fs/checkpoint.c:166 f2fs_is_valid_blkaddr+0x5bd/0xa90 fs/f2fs/checkpoint.c:166 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Kernel panic - not syncing: panic_on_warn set ... Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x22c/0x33e lib/dump_stack.c:118 sysfs_warn_dup.cold+0x1c/0x2d fs/sysfs/dir.c:30 sysfs_do_create_link_sd+0x122/0x140 fs/sysfs/symlink.c:50 sysfs_do_create_link fs/sysfs/symlink.c:79 [inline] sysfs_create_link+0x5f/0xc0 fs/sysfs/symlink.c:91 device_add_class_symlinks drivers/base/core.c:1918 [inline] device_add+0x6c9/0x1550 drivers/base/core.c:2120 wiphy_register+0x16f4/0x22b0 net/wireless/core.c:832 ieee80211_register_hw+0x1645/0x3580 net/mac80211/main.c:1092 mac80211_hwsim_new_radio+0x1f5c/0x4070 drivers/net/wireless/mac80211_hwsim.c:2896 hwsim_new_radio_nl+0x5ef/0x8b0 drivers/net/wireless/mac80211_hwsim.c:3374 genl_family_rcv_msg+0x6bf/0xd50 net/netlink/genetlink.c:602 genl_rcv_msg+0xdf/0x1b0 net/netlink/genetlink.c:627 netlink_rcv_skb+0x160/0x440 net/netlink/af_netlink.c:2455 genl_rcv+0x24/0x40 net/netlink/genetlink.c:638 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline] netlink_unicast+0x4d5/0x690 net/netlink/af_netlink.c:1344 netlink_sendmsg+0x717/0xcc0 net/netlink/af_netlink.c:1909 sock_sendmsg_nosec net/socket.c:622 [inline] sock_sendmsg+0xc7/0x130 net/socket.c:632 ___sys_sendmsg+0x7bb/0x8f0 net/socket.c:2115 __sys_sendmsg net/socket.c:2153 [inline] __do_sys_sendmsg net/socket.c:2162 [inline] __se_sys_sendmsg net/socket.c:2160 [inline] __x64_sys_sendmsg+0x132/0x220 net/socket.c:2160 do_syscall_64+0xf9/0x670 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45e179 Code: 3d b2 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 0b b2 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f213e742c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 000000000002cd80 RCX: 000000000045e179 RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000005 RBP: 000000000118cf80 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118cf4c R13: 00007ffd3ce643ef R14: 00007f213e7439c0 R15: 000000000118cf4c CPU: 1 PID: 20654 Comm: syz-executor.1 Not tainted 4.19.146-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x22c/0x33e lib/dump_stack.c:118 panic+0x2ac/0x565 kernel/panic.c:186 __warn.cold+0x20/0x5a kernel/panic.c:541 report_bug+0x262/0x2b0 lib/bug.c:186 fixup_bug arch/x86/kernel/traps.c:178 [inline] fixup_bug arch/x86/kernel/traps.c:173 [inline] do_error_trap+0x1e1/0x330 arch/x86/kernel/traps.c:296 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:1038 RIP: 0010:f2fs_is_valid_blkaddr+0x5bd/0xa90 fs/f2fs/checkpoint.c:166 Code: 90 04 00 00 48 8b 7d 00 44 89 e1 48 c7 c2 80 ce 47 88 48 c7 c6 a0 cb 47 88 e8 0f d8 fd ff 48 c7 c7 c0 ce 47 88 e8 82 f0 23 fe <0f> 0b 45 31 e4 e9 e3 fb ff ff e8 44 75 3a fe 48 8d bd 5c 0d 00 00 RSP: 0018:ffff8880463af720 EFLAGS: 00010286 RAX: 0000000000000024 RBX: 0000000000000005 RCX: 0000000000000000 RDX: 0000000000040000 RSI: ffffffff815b523f RDI: ffffed1008c75ed6 RBP: ffff88804b5d8900 R08: 0000000000000024 R09: 0000000000000000 R10: 0000000000000005 R11: 0000000000000000 R12: 0000000000000001 R13: 0000000000001400 R14: 0000000000004000 R15: ffff88804b5d8a40 f2fs_submit_page_bio+0x19a/0x15e0 fs/f2fs/data.c:450 read_node_page+0x496/0x660 fs/f2fs/node.c:1303 __get_node_page.part.0+0x9b/0x1540 fs/f2fs/node.c:1348 __get_node_page fs/f2fs/node.c:38 [inline] f2fs_get_node_page+0x109/0x1a0 fs/f2fs/node.c:1394 do_read_inode fs/f2fs/inode.c:306 [inline] f2fs_iget+0x22a/0x4e90 fs/f2fs/inode.c:439 f2fs_fill_super+0x243d/0x7920 fs/f2fs/super.c:3056 mount_bdev+0x2fc/0x3b0 fs/super.c:1158 mount_fs+0xa3/0x318 fs/super.c:1261 vfs_kern_mount.part.0+0x68/0x470 fs/namespace.c:961 vfs_kern_mount fs/namespace.c:951 [inline] do_new_mount fs/namespace.c:2469 [inline] do_mount+0x51c/0x2f10 fs/namespace.c:2799 ksys_mount+0xcf/0x130 fs/namespace.c:3015 __do_sys_mount fs/namespace.c:3029 [inline] __se_sys_mount fs/namespace.c:3026 [inline] __x64_sys_mount+0xba/0x150 fs/namespace.c:3026 do_syscall_64+0xf9/0x670 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x460bca Code: b8 a6 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 dd 87 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 ba 87 fb ff c3 66 0f 1f 84 00 00 00 00 00 RSP: 002b:00007fe3a42daa88 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007fe3a42dab20 RCX: 0000000000460bca RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007fe3a42daae0 RBP: 00007fe3a42daae0 R08: 00007fe3a42dab20 R09: 0000000020000000 R10: 0000000000000000 R11: 0000000000000202 R12: 0000000020000000 R13: 0000000020000100 R14: 0000000020000200 R15: 0000000020014b00 Kernel Offset: disabled Rebooting in 86400 seconds..