tmpfs: Unknown parameter 'he'
BUG: sleeping function called from invalid context at ./include/linux/pagemap.h:1163
in_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 13591, name: syz.4.2234
preempt_count: 0, expected: 0
RCU nest depth: 1, expected: 0
4 locks held by syz.4.2234/13591:
#0: ffff888059b53978 (&f->f_pos_lock){+.+.}-{4:4}, at: fdget_pos+0x2a2/0x370 fs/file.c:1213
#1: ffff88805f558b88 (&type->i_mutex_dir_key#11){.+.+}-{4:4}, at: iterate_dir+0x18b/0xb40 fs/readdir.c:101
#2: ffffffff8e3be0c0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:331 [inline]
#2: ffffffff8e3be0c0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:841 [inline]
#2: ffffffff8e3be0c0 (rcu_read_lock){....}-{1:3}, at: afs_dynroot_readdir+0x619/0xf50 fs/afs/dynroot.c:351
#3: ffff88805fe66fe0 (&mm->mmap_lock){++++}-{4:4}, at: mmap_read_trylock include/linux/mmap_lock.h:209 [inline]
#3: ffff88805fe66fe0 (&mm->mmap_lock){++++}-{4:4}, at: get_mmap_lock_carefully mm/memory.c:6237 [inline]
#3: ffff88805fe66fe0 (&mm->mmap_lock){++++}-{4:4}, at: lock_mm_and_find_vma+0x35/0x6e0 mm/memory.c:6297
CPU: 1 UID: 0 PID: 13591 Comm: syz.4.2234 Not tainted 6.14.0-syzkaller-01103-g2df0c02dab82 #0 PREEMPT(full)
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x16c/0x1f0 lib/dump_stack.c:120
__might_resched+0x3c0/0x5e0 kernel/sched/core.c:8798
folio_lock include/linux/pagemap.h:1163 [inline]
__do_fault+0x39b/0x490 mm/memory.c:5011
do_shared_fault mm/memory.c:5473 [inline]
do_fault mm/memory.c:5547 [inline]
do_pte_missing+0x1a6/0x3ea0 mm/memory.c:4059
handle_pte_fault mm/memory.c:5888 [inline]
__handle_mm_fault+0x1043/0x2a50 mm/memory.c:6031
handle_mm_fault+0x3fa/0xaa0 mm/memory.c:6200
do_user_addr_fault+0x7a9/0x1430 arch/x86/mm/fault.c:1388
handle_page_fault arch/x86/mm/fault.c:1480 [inline]
exc_page_fault+0x5c/0xc0 arch/x86/mm/fault.c:1538
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
RIP: 0010:filldir+0x2b7/0x5f0 fs/readdir.c:292
Code: e8 3e 02 85 ff 0f 01 cb 0f ae e8 48 8b 04 24 49 89 47 08 e8 2b 02 85 ff 4c 8b 7c 24 30 48 8b 44 24 10 49 89 07 e8 19 02 85 ff <66> 45 89 6f 10 e8 0f 02 85 ff 49 63 f5 0f b6 7c 24 1c 48 89 34 24
RSP: 0018:ffffc900061f7c68 EFLAGS: 00050293
RAX: 0000000000000000 RBX: ffffc900061f7e80 RCX: ffffffff8235f3aa
RDX: ffff888026960000 RSI: ffffffff8235f427 RDI: 0000000000000006
RBP: 0000200000002008 R08: 0000000000000006 R09: 0000200000001fd8
R10: 0000200000002008 R11: 0000000000000000 R12: 0000000000000003
R13: 0000000000000018 R14: ffff888104a78b21 R15: 0000200000001ff0
dir_emit include/linux/fs.h:3853 [inline]
afs_dynroot_readdir_cells fs/afs/dynroot.c:310 [inline]
afs_dynroot_readdir+0x9bb/0xf50 fs/afs/dynroot.c:352
iterate_dir+0x293/0xb40 fs/readdir.c:108
__do_sys_getdents fs/readdir.c:322 [inline]
__se_sys_getdents fs/readdir.c:308 [inline]
__x64_sys_getdents+0x14d/0x2c0 fs/readdir.c:308
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xcd/0x260 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ff213d8d169
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ff214c28038 EFLAGS: 00000246 ORIG_RAX: 000000000000004e
RAX: ffffffffffffffda RBX: 00007ff213fa5fa0 RCX: 00007ff213d8d169
RDX: 00000000000000b8 RSI: 0000200000001fc0 RDI: 0000000000000008
RBP: 00007ff213e0e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007ff213fa5fa0 R15: 00007fff179edc58
</TASK>
=============================
[ BUG: Invalid wait context ]
6.14.0-syzkaller-01103-g2df0c02dab82 #0 Tainted: G W
-----------------------------
syz.4.2234/13591 is trying to lock:
ffff888105efd338 (&fbdefio->lock){+.+.}-{4:4}, at: fb_deferred_io_track_page drivers/video/fbdev/core/fb_defio.c:187 [inline]
ffff888105efd338 (&fbdefio->lock){+.+.}-{4:4}, at: fb_deferred_io_page_mkwrite drivers/video/fbdev/core/fb_defio.c:237 [inline]
ffff888105efd338 (&fbdefio->lock){+.+.}-{4:4}, at: fb_deferred_io_mkwrite+0x110/0x980 drivers/video/fbdev/core/fb_defio.c:245
other info that might help us debug this:
context-{5:5}
4 locks held by syz.4.2234/13591:
#0: ffff888059b53978 (&f->f_pos_lock){+.+.}-{4:4}, at: fdget_pos+0x2a2/0x370 fs/file.c:1213
#1: ffff88805f558b88 (&type->i_mutex_dir_key#11){.+.+}-{4:4}, at: iterate_dir+0x18b/0xb40 fs/readdir.c:101
#2: ffffffff8e3be0c0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:331 [inline]
#2: ffffffff8e3be0c0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:841 [inline]
#2: ffffffff8e3be0c0 (rcu_read_lock){....}-{1:3}, at: afs_dynroot_readdir+0x619/0xf50 fs/afs/dynroot.c:351
#3: ffff88805fe66fe0 (&mm->mmap_lock){++++}-{4:4}, at: mmap_read_trylock include/linux/mmap_lock.h:209 [inline]
#3: ffff88805fe66fe0 (&mm->mmap_lock){++++}-{4:4}, at: get_mmap_lock_carefully mm/memory.c:6237 [inline]
#3: ffff88805fe66fe0 (&mm->mmap_lock){++++}-{4:4}, at: lock_mm_and_find_vma+0x35/0x6e0 mm/memory.c:6297
stack backtrace:
CPU: 1 UID: 0 PID: 13591 Comm: syz.4.2234 Tainted: G W 6.14.0-syzkaller-01103-g2df0c02dab82 #0 PREEMPT(full)
Tainted: [W]=WARN
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120
print_lock_invalid_wait_context kernel/locking/lockdep.c:4831 [inline]
check_wait_context kernel/locking/lockdep.c:4903 [inline]
__lock_acquire+0x3ff/0x1ba0 kernel/locking/lockdep.c:5185
lock_acquire kernel/locking/lockdep.c:5866 [inline]
lock_acquire+0x179/0x350 kernel/locking/lockdep.c:5823
__mutex_lock_common kernel/locking/mutex.c:587 [inline]
__mutex_lock+0x19a/0xb00 kernel/locking/mutex.c:732
fb_deferred_io_track_page drivers/video/fbdev/core/fb_defio.c:187 [inline]
fb_deferred_io_page_mkwrite drivers/video/fbdev/core/fb_defio.c:237 [inline]
fb_deferred_io_mkwrite+0x110/0x980 drivers/video/fbdev/core/fb_defio.c:245
do_page_mkwrite+0x177/0x380 mm/memory.c:3256
do_shared_fault mm/memory.c:5485 [inline]
do_fault mm/memory.c:5547 [inline]
do_pte_missing+0x29c/0x3ea0 mm/memory.c:4059
handle_pte_fault mm/memory.c:5888 [inline]
__handle_mm_fault+0x1043/0x2a50 mm/memory.c:6031
handle_mm_fault+0x3fa/0xaa0 mm/memory.c:6200
do_user_addr_fault+0x7a9/0x1430 arch/x86/mm/fault.c:1388
handle_page_fault arch/x86/mm/fault.c:1480 [inline]
exc_page_fault+0x5c/0xc0 arch/x86/mm/fault.c:1538
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
RIP: 0010:filldir+0x2b7/0x5f0 fs/readdir.c:292
Code: e8 3e 02 85 ff 0f 01 cb 0f ae e8 48 8b 04 24 49 89 47 08 e8 2b 02 85 ff 4c 8b 7c 24 30 48 8b 44 24 10 49 89 07 e8 19 02 85 ff <66> 45 89 6f 10 e8 0f 02 85 ff 49 63 f5 0f b6 7c 24 1c 48 89 34 24
RSP: 0018:ffffc900061f7c68 EFLAGS: 00050293
RAX: 0000000000000000 RBX: ffffc900061f7e80 RCX: ffffffff8235f3aa
RDX: ffff888026960000 RSI: ffffffff8235f427 RDI: 0000000000000006
RBP: 0000200000002008 R08: 0000000000000006 R09: 0000200000001fd8
R10: 0000200000002008 R11: 0000000000000000 R12: 0000000000000003
R13: 0000000000000018 R14: ffff888104a78b21 R15: 0000200000001ff0
dir_emit include/linux/fs.h:3853 [inline]
afs_dynroot_readdir_cells fs/afs/dynroot.c:310 [inline]
afs_dynroot_readdir+0x9bb/0xf50 fs/afs/dynroot.c:352
iterate_dir+0x293/0xb40 fs/readdir.c:108
__do_sys_getdents fs/readdir.c:322 [inline]
__se_sys_getdents fs/readdir.c:308 [inline]
__x64_sys_getdents+0x14d/0x2c0 fs/readdir.c:308
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xcd/0x260 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ff213d8d169
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ff214c28038 EFLAGS: 00000246 ORIG_RAX: 000000000000004e
RAX: ffffffffffffffda RBX: 00007ff213fa5fa0 RCX: 00007ff213d8d169
RDX: 00000000000000b8 RSI: 0000200000001fc0 RDI: 0000000000000008
RBP: 00007ff213e0e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007ff213fa5fa0 R15: 00007fff179edc58
</TASK>
----------------
Code disassembly (best guess):
0: e8 3e 02 85 ff call 0xff850243
5: 0f 01 cb stac
8: 0f ae e8 lfence
b: 48 8b 04 24 mov (%rsp),%rax
f: 49 89 47 08 mov %rax,0x8(%r15)
13: e8 2b 02 85 ff call 0xff850243
18: 4c 8b 7c 24 30 mov 0x30(%rsp),%r15
1d: 48 8b 44 24 10 mov 0x10(%rsp),%rax
22: 49 89 07 mov %rax,(%r15)
25: e8 19 02 85 ff call 0xff850243
* 2a: 66 45 89 6f 10 mov %r13w,0x10(%r15) <-- trapping instruction
2f: e8 0f 02 85 ff call 0xff850243
34: 49 63 f5 movslq %r13d,%rsi
37: 0f b6 7c 24 1c movzbl 0x1c(%rsp),%edi
3c: 48 89 34 24 mov %rsi,(%rsp)