sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
------------[ cut here ]------------
kernfs_put: syz5/pids.events: released with incorrect active_ref 0
WARNING: CPU: 1 PID: 11864 at fs/kernfs/dir.c:531 kernfs_put.part.0+0x433/0x540
Modules linked in:
CPU: 1 PID: 11864 Comm: kworker/1:1 Not tainted 5.19.0-rc5-next-20220706 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
Workqueue: events kernfs_notify_workfn
RIP: 0010:kernfs_put.part.0+0x433/0x540
Code: 03 80 3c 18 00 0f 85 ea 00 00 00 4d 8b 7d 38 e8 53 fc a6 ff 48 8b 14 24 44 89 f1 4c 89 fe 48 c7 c7 e0 5b 72 84 e8 13 aa 6c 02 <0f> 0b e9 b9 fc ff ff 48 89 ef e8 0e b3 d9 ff e9 c1 fd ff ff e8 04
RSP: 0018:ffff88800f8efbd8 EFLAGS: 00010286
RAX: 0000000000000000 RBX: dffffc0000000000 RCX: 0000000000000000
RDX: ffff8880084db580 RSI: ffffffff812bd348 RDI: ffffed1001f1df6d
RBP: ffff8880204574c0 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000080000000 R11: 0000000000000001 R12: ffff888020457488
R13: ffff88801d3070e8 R14: 0000000000000000 R15: ffff88800f1067a8
FS: 0000000000000000(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f3e605880f8 CR3: 000000004021a000 CR4: 0000000000350ee0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff4ff0 DR7: 0000000000000400
Call Trace:
kernfs_put+0x42/0x50
kernfs_notify_workfn+0x417/0x560
process_one_work+0xa0f/0x1690
worker_thread+0x637/0x1250
kthread+0x2ed/0x3a0
ret_from_fork+0x22/0x30
irq event stamp: 144471
hardirqs last enabled at (144481): [] __up_console_sem+0x78/0x80
hardirqs last disabled at (144492): [] __up_console_sem+0x5d/0x80
softirqs last enabled at (144232): [] __irq_exit_rcu+0x113/0x170
softirqs last disabled at (144149): [] __irq_exit_rcu+0x113/0x170
---[ end trace 0000000000000000 ]---
==================================================================
BUG: KASAN: use-after-free in llist_del_first+0x89/0xa0
------------[ cut here ]------------
Read of size 8 at addr ffff888020457508 by task kworker/1:1/11864
CPU: 1 PID: 11864 Comm: kworker/1:1 Tainted: G W 5.19.0-rc5-next-20220706 #1
WARNING: CPU: 0 PID: 14626 at fs/kernfs/dir.c:504 kernfs_get.part.0+0x69/0x80
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
Modules linked in:
Workqueue: events kernfs_notify_workfn
Call Trace:
CPU: 0 PID: 14626 Comm: syz-executor.5 Tainted: G W 5.19.0-rc5-next-20220706 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
dump_stack_lvl+0x8b/0xb3
RIP: 0010:kernfs_get.part.0+0x69/0x80
print_report.cold+0x5e/0x5e1
Code: 31 ff 89 ee e8 a8 fd a6 ff 85 ed 74 18 e8 cf 00 a7 ff be 04 00 00 00 48 89 df e8 d2 ba d9 ff f0 ff 03 5b 5d c3 e8 b7 00 a7 ff <0f> 0b eb df 48 89 df e8 7b b7 d9 ff eb c6 66 0f 1f 84 00 00 00 00
RSP: 0018:ffff888045757a40 EFLAGS: 00010093
kasan_report+0xb1/0x1b0
RAX: 0000000000000000 RBX: ffff888020457488 RCX: 0000000000000000
llist_del_first+0x89/0xa0
RDX: ffff888047421ac0 RSI: ffffffff819df849 RDI: 0000000000000005
kernfs_notify_workfn+0x78/0x560
RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000001
R13: 1ffffffff0a01e40 R14: ffff888020457488 R15: ffff888044663930
FS: 00005555566a3400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
process_one_work+0xa0f/0x1690
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff8a0fc0fe0 CR3: 000000004740a000 CR4: 0000000000350ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff4ff0 DR7: 0000000000000400
worker_thread+0x637/0x1250
Call Trace:
kernfs_get+0x1b/0x30
kthread+0x2ed/0x3a0
kernfs_notify+0x180/0x350
cgroup_file_notify+0xf5/0x1a0
ret_from_fork+0x22/0x30
pids_can_fork+0x22f/0x370
Allocated by task 294:
cgroup_can_fork+0x332/0x11b0
kasan_save_stack+0x1e/0x40
copy_process+0x4023/0x6d60
__kasan_slab_alloc+0x66/0x80
kmem_cache_alloc+0x1b1/0x490
kernel_clone+0xe7/0xa60
__kernfs_new_node+0xd4/0x8b0
kernfs_new_node+0x93/0x120
__kernfs_create_file+0x51/0x350
cgroup_addrm_files+0x3e2/0x9d0
css_populate_dir+0x19b/0x450
__do_sys_clone+0xba/0x100
cgroup_apply_control_enable+0x3ae/0xa40
cgroup_mkdir+0x824/0x11f0
kernfs_iop_mkdir+0x149/0x1d0
vfs_mkdir+0x417/0x6a0
do_syscall_64+0x3b/0x90
do_mkdirat+0x17b/0x2e0
entry_SYSCALL_64_after_hwframe+0x46/0xb0
__x64_sys_mkdir+0xf2/0x140
RIP: 0033:0x7ff8a0eaef41
do_syscall_64+0x3b/0x90
Code: 48 85 ff 74 3d 48 85 f6 74 38 48 83 ee 10 48 89 4e 08 48 89 3e 48 89 d7 4c 89 c2 4d 89 c8 4c 8b 54 24 08 b8 38 00 00 00 0f 05 <48> 85 c0 7c 13 74 01 c3 31 ed 58 5f ff d0 48 89 c7 b8 3c 00 00 00
entry_SYSCALL_64_after_hwframe+0x46/0xb0
RSP: 002b:00007ffce1988ab8 EFLAGS: 00000206
Freed by task 11864:
ORIG_RAX: 0000000000000038
kasan_save_stack+0x1e/0x40
RAX: ffffffffffffffda RBX: 00007ff89e402700 RCX: 00007ff8a0eaef41
kasan_set_track+0x21/0x30
RDX: 00007ff89e4029d0 RSI: 00007ff89e4022f0 RDI: 00000000003d0f00
kasan_set_free_info+0x20/0x30
RBP: 00007ffce1988cf0 R08: 00007ff89e402700 R09: 00007ff89e402700
__kasan_slab_free+0x108/0x190
R10: 00007ff89e4029d0 R11: 0000000000000206 R12: 00007ffce1988b6e
kmem_cache_free+0xfb/0x600
R13: 00007ffce1988b6f R14: 00007ff89e402300 R15: 00005555566a4d50
kernfs_put.part.0+0x2c7/0x540
kernfs_put+0x42/0x50
irq event stamp: 11196
kernfs_notify_workfn+0x417/0x560
hardirqs last enabled at (11195): [] _raw_spin_unlock_irq+0x1f/0x40
process_one_work+0xa0f/0x1690
hardirqs last disabled at (11196): [] _raw_spin_lock_irqsave+0x4e/0x50
worker_thread+0x637/0x1250
softirqs last enabled at (11174): [] fpu_clone+0x3be/0xb00
kthread+0x2ed/0x3a0
softirqs last disabled at (11172): [] fpu_clone+0x331/0xb00
ret_from_fork+0x22/0x30
---[ end trace 0000000000000000 ]---
The buggy address belongs to the object at ffff888020457488
which belongs to the cache kernfs_node_cache of size 168
The buggy address is located 128 bytes inside of
168-byte region [ffff888020457488, ffff888020457530)
The buggy address belongs to the physical page:
page:0000000064a11931 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x20457
flags: 0x100000000000200(slab|node=0|zone=1)
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
raw: 0100000000000200 0000000000000000 dead000000000122 ffff8880080358c0
raw: 0000000000000000 0000000000110011 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
Memory state around the buggy address:
ffff888020457400: 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
ffff888020457480: fc fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff888020457500: fb fb fb fb fb fb fc fc fc fc fc fc fc fc 00 00
^
ffff888020457580: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
ffff888020457600: 00 00 00 fc fc fc fc fc fc fc fc 00 00 00 00 00
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
==================================================================
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
cgroup: fork rejected by pids controller in /syz6
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
general protection fault, probably for non-canonical address 0x221ec56e2af2008: 0000 [#1] PREEMPT SMP KASAN NOPTI
CPU: 0 PID: 112 Comm: systemd-journal Tainted: G B W 5.19.0-rc5-next-20220706 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
RIP: 0010:qlist_free_all+0xaf/0x190
Code: 80 4c 01 c2 0f 82 f0 00 00 00 48 c7 c0 00 00 00 80 48 2b 05 c3 76 7b 03 48 01 d0 48 c1 e8 0c 48 c1 e0 06 48 03 05 a1 76 7b 03 <48> 8b 48 08 48 89 c2 f6 c1 01 0f 85 b6 00 00 00 0f 1f 44 00 00 48
RSP: 0018:ffff888018177c70 EFLAGS: 00010207
RAX: 0221ec56e2af2000 RBX: 88801e38abc80000 RCX: 000000000012000f
RDX: 88801e392bc80000 RSI: ffffea00011dfa80 RDI: 0000000040000000
RBP: 0000000000000000 R08: 88801e38abc80000 R09: 000000000012000f
R10: ffffea00011dfa80 R11: 0000000000000000 R12: dffffc0000000000
R13: ffff888018177cb0 R14: 0000000000000000 R15: ffff8880477ebd46
FS: 00007f3e64b9d900(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f3e62248170 CR3: 000000000ebce000 CR4: 0000000000350ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff4ff0 DR7: 0000000000000400
Call Trace:
kasan_quarantine_reduce+0x180/0x200
__kasan_slab_alloc+0x78/0x80
kmem_cache_alloc+0x1b1/0x490
getname_flags.part.0+0x50/0x4f0
getname+0x8e/0xd0
do_sys_openat2+0xf5/0x4c0
__x64_sys_openat+0x13f/0x1f0
do_syscall_64+0x3b/0x90
entry_SYSCALL_64_after_hwframe+0x46/0xb0
RIP: 0033:0x7f3e65456df3
Code: 89 7c 24 18 44 89 54 24 0c e8 a9 5f f9 ff 44 8b 54 24 0c 8b 54 24 1c 41 89 c0 48 8b 74 24 10 8b 7c 24 18 b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 77 35 44 89 c7 89 44 24 0c e8 d9 5f f9 ff 8b 44
RSP: 002b:00007ffed8cc5f30 EFLAGS: 00000293 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f3e65456df3
RDX: 00000000002a0000 RSI: 0000559d14bd7ee1 RDI: 0000000000000014
RBP: 00007ffed8cc6160 R08: 0000000000000000 R09: 0000559d14bd0010
R10: 0000000000000000 R11: 0000000000000293 R12: 0000559d14bd7ee0
R13: 00007ffed8cc61f0 R14: 0000000000000001 R15: 0000559d14c10180
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:qlist_free_all+0xaf/0x190
Code: 80 4c 01 c2 0f 82 f0 00 00 00 48 c7 c0 00 00 00 80 48 2b 05 c3 76 7b 03 48 01 d0 48 c1 e8 0c 48 c1 e0 06 48 03 05 a1 76 7b 03 <48> 8b 48 08 48 89 c2 f6 c1 01 0f 85 b6 00 00 00 0f 1f 44 00 00 48
RSP: 0018:ffff888018177c70 EFLAGS: 00010207
RAX: 0221ec56e2af2000 RBX: 88801e38abc80000 RCX: 000000000012000f
RDX: 88801e392bc80000 RSI: ffffea00011dfa80 RDI: 0000000040000000
RBP: 0000000000000000 R08: 88801e38abc80000 R09: 000000000012000f
R10: ffffea00011dfa80 R11: 0000000000000000 R12: dffffc0000000000
R13: ffff888018177cb0 R14: 0000000000000000 R15: ffff8880477ebd46
FS: 00007f3e64b9d900(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f3e62248170 CR3: 000000000ebce000 CR4: 0000000000350ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff4ff0 DR7: 0000000000000400
systemd[1]: systemd-journald.service: Scheduled restart job, restart counter is at 1.
BUG: kernel NULL pointer dereference, address: 00000000000000d8
#PF: supervisor write access in kernel mode
#PF: error_code(0x0002) - not-present page
PGD 4442a067 P4D 4442a067 PUD 0
Oops: 0002 [#2] PREEMPT SMP KASAN NOPTI
CPU: 1 PID: 11864 Comm: kworker/1:1 Tainted: G B D W 5.19.0-rc5-next-20220706 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
Workqueue: events kernfs_notify_workfn
RIP: 0010:down_write+0xbf/0x150
Code: 00 00 00 48 c7 44 24 28 00 00 00 00 e8 8a 52 5c fd be 08 00 00 00 48 8d 7c 24 28 e8 7b 52 5c fd ba 01 00 00 00 48 8b 44 24 28 48 0f b1 55 00 0f 94 c0 5a 84 c0 74 5b 4c 8d 6d 08 be 08 00 00
RSP: 0018:ffff88800f8efbb8 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 1ffff11001f1df78 RCX: ffffffff841b6095
RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffff88800f8efbe0
RBP: 00000000000000d8 R08: 0000000000000001 R09: ffff88800f8efbe7
R10: ffffed1001f1df7c R11: 0000000000000001 R12: dffffc0000000000
R13: ffff8880080bc078 R14: ffff888020457488 R15: dffffc0000000000
FS: 0000000000000000(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000000000d8 CR3: 00000000175dc000 CR4: 0000000000350ee0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff4ff0 DR7: 0000000000000400
Call Trace:
kernfs_notify_workfn+0xe5/0x560
process_one_work+0xa0f/0x1690
worker_thread+0x637/0x1250
kthread+0x2ed/0x3a0
ret_from_fork+0x22/0x30
Modules linked in:
CR2: 00000000000000d8
---[ end trace 0000000000000000 ]---
RIP: 0010:qlist_free_all+0xaf/0x190
Code: 80 4c 01 c2 0f 82 f0 00 00 00 48 c7 c0 00 00 00 80 48 2b 05 c3 76 7b 03 48 01 d0 48 c1 e8 0c 48 c1 e0 06 48 03 05 a1 76 7b 03 <48> 8b 48 08 48 89 c2 f6 c1 01 0f 85 b6 00 00 00 0f 1f 44 00 00 48
RSP: 0018:ffff888018177c70 EFLAGS: 00010207
RAX: 0221ec56e2af2000 RBX: 88801e38abc80000 RCX: 000000000012000f
RDX: 88801e392bc80000 RSI: ffffea00011dfa80 RDI: 0000000040000000
RBP: 0000000000000000 R08: 88801e38abc80000 R09: 000000000012000f
R10: ffffea00011dfa80 R11: 0000000000000000 R12: dffffc0000000000
R13: ffff888018177cb0 R14: 0000000000000000 R15: ffff8880477ebd46
FS: 0000000000000000(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000000000d8 CR3: 00000000175dc000 CR4: 0000000000350ee0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff4ff0 DR7: 0000000000000400
systemd[1]: Stopping Flush Journal to Persistent Storage...
systemd[1]: systemd-journal-flush.service: Succeeded.
systemd[1]: Stopped Flush Journal to Persistent Storage.
systemd[1]: Stopped Journal Service.
systemd[1]: systemd-journald.service: Consumed 8min 34.621s CPU time.
systemd[1]: Starting Journal Service...
------------[ cut here ]------------
WARNING: CPU: 1 PID: 14958 at mm/kasan/shadow.c:134 kasan_unpoison+0x42/0x50
Modules linked in:
CPU: 1 PID: 14958 Comm: systemd-journal Tainted: G B D W 5.19.0-rc5-next-20220706 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
RIP: 0010:kasan_unpoison+0x42/0x50
Code: 89 fb 48 83 c6 01 e8 7d fe ff ff 48 89 e8 83 e0 07 74 14 48 ba 00 00 00 00 00 fc ff df 48 01 eb 48 c1 eb 03 88 04 13 5b 5d c3 <0f> 0b c3 66 66 2e 0f 1f 84 00 00 00 00 00 41 57 48 89 f8 41 56 48
RSP: 0018:ffff888048b676b0 EFLAGS: 00010206
RAX: 0000000003113680 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000170 RDI: ffff8880477ebd46
RBP: ffff88800784f780 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: ffff8880477ebd46
R13: 0000000000092cc0 R14: 0000000000092cc0 R15: 0000000000092cc0
FS: 0000000000000000(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fdb44eb3298 CR3: 000000004fbc6000 CR4: 0000000000350ee0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff4ff0 DR7: 0000000000000400
Call Trace:
__kasan_slab_alloc+0x2c/0x80
kmem_cache_alloc+0x1b1/0x490
__create_object.isra.0+0x3d/0xc10
kmem_cache_alloc_bulk+0x3fa/0x790
mas_alloc_nodes+0x2a6/0x6a0
mas_preallocate+0xff/0x2d0
__vma_adjust+0x1f1/0x1890
__split_vma+0x452/0x540
do_mas_align_munmap.constprop.0+0x629/0xff0
do_mas_munmap+0x1e8/0x2b0
mmap_region+0x21c/0x19f0
do_mmap+0x824/0xf40
vm_mmap_pgoff+0x1ab/0x270
ksys_mmap_pgoff+0x3cc/0x4f0
do_syscall_64+0x3b/0x90
entry_SYSCALL_64_after_hwframe+0x46/0xb0
RIP: 0033:0x7fdb45193d82
Code: eb aa 66 0f 1f 44 00 00 41 f7 c1 ff 0f 00 00 75 27 55 48 89 fd 53 89 cb 48 85 ff 74 33 41 89 da 48 89 ef b8 09 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 56 5b 5d c3 0f 1f 00 c7 05 ae 03 01 00 16 00
RSP: 002b:00007ffc26692f78 EFLAGS: 00000206 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 0000000000000812 RCX: 00007fdb45193d82
RDX: 0000000000000005 RSI: 000000000014b000 RDI: 00007fdb44d13000
RBP: 00007fdb44d13000 R08: 000000000000000b R09: 0000000000025000
R10: 0000000000000812 R11: 0000000000000206 R12: 00007fdb45176a20
R13: 00007ffc26692f90 R14: 00007ffc26692fc0 R15: 00007ffc266933b0
irq event stamp: 0
hardirqs last enabled at (0): [<0000000000000000>] 0x0
hardirqs last disabled at (0): [] copy_process+0x1db6/0x6d60
softirqs last enabled at (0): [] copy_process+0x1dfa/0x6d60
softirqs last disabled at (0): [<0000000000000000>] 0x0
---[ end trace 0000000000000000 ]---
------------[ cut here ]------------
WARNING: CPU: 1 PID: 14958 at kernel/rcu/tree.c:2776 call_rcu+0x6c6/0xa20
Modules linked in:
CPU: 1 PID: 14958 Comm: systemd-journal Tainted: G B D W 5.19.0-rc5-next-20220706 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
RIP: 0010:call_rcu+0x6c6/0xa20
Code: c1 ea 03 80 3c 02 00 0f 85 c0 02 00 00 48 8b 85 a0 00 00 00 48 85 c0 0f 85 37 fa ff ff 4c 89 ff e8 4f d2 00 00 e9 2a fa ff ff <0f> 0b e9 50 f9 ff ff e8 ee 21 ff ff e9 05 fc ff ff e8 14 49 46 00
RSP: 0018:ffff888048b67698 EFLAGS: 00010206
RAX: 0000000000000000 RBX: ffff8880477ebdc6 RCX: ffffffff817b0f05
RDX: 1ffff11008efd7b0 RSI: ffffffff817b0820 RDI: 0000000000000006
RBP: 0000000000000000 R08: 0000000000000001 R09: ffff8880477ebdd9
R10: ffffed1008efd7bb R11: 0000000000000001 R12: ffffffff817b0820
R13: ffff888007875000 R14: ffff888046e13600 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fdb44eb3298 CR3: 000000004fbc6000 CR4: 0000000000350ee0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff4ff0 DR7: 0000000000000400
Call Trace:
kmem_cache_free_bulk+0x30a/0x850
mas_destroy+0x380/0x8d0
mas_store_prealloc+0xec/0x150
__vma_adjust+0x688/0x1890
__split_vma+0x452/0x540
do_mas_align_munmap.constprop.0+0x629/0xff0
do_mas_munmap+0x1e8/0x2b0
mmap_region+0x21c/0x19f0
do_mmap+0x824/0xf40
vm_mmap_pgoff+0x1ab/0x270
ksys_mmap_pgoff+0x3cc/0x4f0
do_syscall_64+0x3b/0x90
entry_SYSCALL_64_after_hwframe+0x46/0xb0
RIP: 0033:0x7fdb45193d82
Code: eb aa 66 0f 1f 44 00 00 41 f7 c1 ff 0f 00 00 75 27 55 48 89 fd 53 89 cb 48 85 ff 74 33 41 89 da 48 89 ef b8 09 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 56 5b 5d c3 0f 1f 00 c7 05 ae 03 01 00 16 00
RSP: 002b:00007ffc26692f78 EFLAGS: 00000206 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 0000000000000812 RCX: 00007fdb45193d82
RDX: 0000000000000005 RSI: 000000000014b000 RDI: 00007fdb44d13000
RBP: 00007fdb44d13000 R08: 000000000000000b R09: 0000000000025000
R10: 0000000000000812 R11: 0000000000000206 R12: 00007fdb45176a20
R13: 00007ffc26692f90 R14: 00007ffc26692fc0 R15: 00007ffc266933b0
irq event stamp: 0
hardirqs last enabled at (0): [<0000000000000000>] 0x0
hardirqs last disabled at (0): [] copy_process+0x1db6/0x6d60
softirqs last enabled at (0): [] copy_process+0x1dfa/0x6d60
softirqs last disabled at (0): [<0000000000000000>] 0x0
---[ end trace 0000000000000000 ]---
systemd-journald[14958]: File /var/log/journal/7e681e5076844de4a5cfa8606a84b008/system.journal corrupted or uncleanly shut down, renaming and replacing.
systemd[1]: Started Journal Service.
systemd-journald[14958]: Received client request to flush runtime journal.
general protection fault, probably for non-canonical address 0xeddbfc0000000002: 0000 [#3] PREEMPT SMP KASAN NOPTI
KASAN: maybe wild-memory-access in range [0x6ee0000000000010-0x6ee0000000000017]
CPU: 0 PID: 14957 Comm: syz-executor Tainted: G B D W 5.19.0-rc5-next-20220706 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
RIP: 0010:scan_gray_list+0x2d8/0x3f0
Code: 83 c4 18 5b 5d 41 5c 41 5d 41 5e 41 5f c3 4c 8b a5 c0 00 00 00 4d 85 e4 0f 84 24 ff ff ff 49 8d 7c 24 10 48 89 f8 48 c1 e8 03 <80> 3c 18 00 0f 85 9d 00 00 00 49 8d 7c 24 18 4d 8b 6c 24 10 48 89
RSP: 0018:ffff888045e6fbf0 EFLAGS: 00010012
RAX: 0ddc000000000002 RBX: dffffc0000000000 RCX: ffffffff8129ed51
RDX: 1ffff11008efd7a9 RSI: 0000000000000004 RDI: 6ee0000000000010
RBP: ffff8880477ebcb0 R08: 0000000000000001 R09: ffff888045e6fb63
R10: ffffed1008bcdf6c R11: 0000000000000001 R12: 6ee0000000000000
R13: ffffdead4ead0000 R14: ffffdead4ead0000 R15: 0000000000000246
FS: 00005555563f4400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f2d2e465514 CR3: 000000004824e000 CR4: 0000000000350ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff4ff0 DR7: 0000000000000400
Call Trace:
kmemleak_scan+0x85a/0x16f0
kmemleak_write+0x56c/0x680
full_proxy_write+0x11d/0x190
vfs_write+0x264/0xac0
ksys_write+0x127/0x250
do_syscall_64+0x3b/0x90
entry_SYSCALL_64_after_hwframe+0x46/0xb0
RIP: 0033:0x7f2790a935c3
Code: 16 00 00 00 eb ae 90 b8 6e 00 00 00 eb a6 e8 44 ef 04 00 0f 1f 40 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18
RSP: 002b:00007fff6ba61b28 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fff6ba62168 RCX: 00007f2790a935c3
RDX: 0000000000000004 RSI: 00007f2790b49ed9 RDI: 0000000000000003
RBP: 0000000000000002 R08: 0000000000000d44 R09: 00007fff6bace080
R10: 00007fff6bace090 R11: 0000000000000246 R12: 00000000fffffff6
R13: 00007fff6ba62ef1 R14: 0000000000000000 R15: 000000000033d212
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:qlist_free_all+0xaf/0x190
Code: 80 4c 01 c2 0f 82 f0 00 00 00 48 c7 c0 00 00 00 80 48 2b 05 c3 76 7b 03 48 01 d0 48 c1 e8 0c 48 c1 e0 06 48 03 05 a1 76 7b 03 <48> 8b 48 08 48 89 c2 f6 c1 01 0f 85 b6 00 00 00 0f 1f 44 00 00 48
RSP: 0018:ffff888018177c70 EFLAGS: 00010207
RAX: 0221ec56e2af2000 RBX: 88801e38abc80000 RCX: 000000000012000f
RDX: 88801e392bc80000 RSI: ffffea00011dfa80 RDI: 0000000040000000
RBP: 0000000000000000 R08: 88801e38abc80000 R09: 000000000012000f
R10: ffffea00011dfa80 R11: 0000000000000000 R12: dffffc0000000000
R13: ffff888018177cb0 R14: 0000000000000000 R15: ffff8880477ebd46
FS: 00005555563f4400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f2d2e465514 CR3: 000000004824e000 CR4: 0000000000350ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff4ff0 DR7: 0000000000000400
note: syz-executor[14957] exited with preempt_count 1
----------------
Code disassembly (best guess):
0: 48 85 ff test %rdi,%rdi
3: 74 3d je 0x42
5: 48 85 f6 test %rsi,%rsi
8: 74 38 je 0x42
a: 48 83 ee 10 sub $0x10,%rsi
e: 48 89 4e 08 mov %rcx,0x8(%rsi)
12: 48 89 3e mov %rdi,(%rsi)
15: 48 89 d7 mov %rdx,%rdi
18: 4c 89 c2 mov %r8,%rdx
1b: 4d 89 c8 mov %r9,%r8
1e: 4c 8b 54 24 08 mov 0x8(%rsp),%r10
23: b8 38 00 00 00 mov $0x38,%eax
28: 0f 05 syscall
* 2a: 48 85 c0 test %rax,%rax <-- trapping instruction
2d: 7c 13 jl 0x42
2f: 74 01 je 0x32
31: c3 retq
32: 31 ed xor %ebp,%ebp
34: 58 pop %rax
35: 5f pop %rdi
36: ff d0 callq *%rax
38: 48 89 c7 mov %rax,%rdi
3b: b8 3c 00 00 00 mov $0x3c,%eax