==================================================================
BUG: KASAN: stack-out-of-bounds in profile_pc+0xa4/0xe0 arch/x86/kernel/time.c:42
Read of size 8 at addr ffffc90003026b00 by task syz.3.110/3906
CPU: 1 PID: 3906 Comm: syz.3.110 Not tainted 5.15.161-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e3/0x2d0 lib/dump_stack.c:106
print_address_description+0x63/0x3b0 mm/kasan/report.c:248
__kasan_report mm/kasan/report.c:434 [inline]
kasan_report+0x16b/0x1c0 mm/kasan/report.c:451
profile_pc+0xa4/0xe0 arch/x86/kernel/time.c:42
profile_tick+0xd4/0x130 kernel/profile.c:416
tick_sched_handle kernel/time/tick-sched.c:255 [inline]
tick_sched_timer+0x390/0x550 kernel/time/tick-sched.c:1473
__run_hrtimer kernel/time/hrtimer.c:1686 [inline]
__hrtimer_run_queues+0x55b/0xcf0 kernel/time/hrtimer.c:1750
hrtimer_interrupt+0x392/0x980 kernel/time/hrtimer.c:1812
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1085 [inline]
__sysvec_apic_timer_interrupt+0x139/0x470 arch/x86/kernel/apic/apic.c:1102
sysvec_apic_timer_interrupt+0x8c/0xb0 arch/x86/kernel/apic/apic.c:1096
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:161 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0xd4/0x130 kernel/locking/spinlock.c:194
Code: 9c 8f 44 24 20 42 80 3c 23 00 74 08 4c 89 f7 e8 62 6c a2 f7 f6 44 24 21 02 75 4e 41 f7 c7 00 02 00 00 74 01 fb bf 01 00 00 00 57 ac 2f f7 65 8b 05 d8 b2 da 75 85 c0 74 3f 48 c7 04 24 0e 36
RSP: 0018:ffffc90003026b00 EFLAGS: 00000206
RAX: 3d786b235d865a00 RBX: 1ffff92000604d64 RCX: ffffffff81631688
RDX: dffffc0000000000 RSI: ffffffff8a8b2a00 RDI: 0000000000000001
RBP: ffffc90003026ba0 R08: dffffc0000000000 R09: fffffbfff1f7f23f
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: 1ffff92000604d60 R14: ffffc90003026b20 R15: 0000000000000246
spin_unlock_irqrestore include/linux/spinlock.h:418 [inline]
get_partial_node+0x223/0x240 mm/slub.c:2152
get_partial mm/slub.c:2232 [inline]
___slab_alloc+0x47a/0xe10 mm/slub.c:3003
__slab_alloc mm/slub.c:3095 [inline]
slab_alloc_node mm/slub.c:3186 [inline]
slab_alloc mm/slub.c:3228 [inline]
__kmalloc+0x1c9/0x300 mm/slub.c:4403
kmalloc include/linux/slab.h:596 [inline]
kmem_alloc+0x136/0x380 fs/xfs/kmem.c:21
xfs_buf_alloc_kmem fs/xfs/xfs_buf.c:325 [inline]
xfs_buf_get_map+0x529/0xb10 fs/xfs/xfs_buf.c:670
xfs_buf_read_map+0x10c/0xa00 fs/xfs/xfs_buf.c:776
xfs_trans_read_buf_map+0x25c/0xa60 fs/xfs/xfs_trans_buf.c:289
xfs_trans_read_buf fs/xfs/xfs_trans.h:210 [inline]
xfs_btree_read_buf_block+0x26e/0x370 fs/xfs/libxfs/xfs_btree.c:1354
xfs_btree_lookup_get_block+0x327/0x790 fs/xfs/libxfs/xfs_btree.c:1825
xfs_btree_lookup+0x3b5/0x13b0 fs/xfs/libxfs/xfs_btree.c:1916
xfs_inobt_lookup fs/xfs/libxfs/xfs_ialloc.c:46 [inline]
xfs_dialloc_ag_finobt_near+0x17e/0x990 fs/xfs/libxfs/xfs_ialloc.c:1266
xfs_dialloc_ag fs/xfs/libxfs/xfs_ialloc.c:1472 [inline]
xfs_dialloc_try_ag fs/xfs/libxfs/xfs_ialloc.c:1708 [inline]
xfs_dialloc+0xfa2/0x1aa0 fs/xfs/libxfs/xfs_ialloc.c:1780
xfs_qm_qino_alloc+0x44b/0x9c0 fs/xfs/xfs_qm.c:788
xfs_qm_init_quotainos+0x61e/0x8a0 fs/xfs/xfs_qm.c:1551
xfs_qm_init_quotainfo+0xa6/0x970 fs/xfs/xfs_qm.c:644
xfs_qm_mount_quotas+0x90/0x610 fs/xfs/xfs_qm.c:1435
xfs_mountfs+0x166a/0x1ce0 fs/xfs/xfs_mount.c:904
xfs_fs_fill_super+0x11b4/0x1400 fs/xfs/xfs_super.c:1676
get_tree_bdev+0x3fe/0x620 fs/super.c:1312
vfs_get_tree+0x88/0x270 fs/super.c:1517
do_new_mount+0x2ba/0xb40 fs/namespace.c:3005
do_mount fs/namespace.c:3348 [inline]
__do_sys_mount fs/namespace.c:3556 [inline]
__se_sys_mount+0x2d5/0x3c0 fs/namespace.c:3533
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f2194a9429a
Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 7e 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 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:00007f2193512e78 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f2193512f00 RCX: 00007f2194a9429a
RDX: 0000000020009600 RSI: 0000000020009640 RDI: 00007f2193512ec0
RBP: 0000000020009600 R08: 00007f2193512f00 R09: 0000000000000840
R10: 0000000000000840 R11: 0000000000000206 R12: 0000000020009640
R13: 00007f2193512ec0 R14: 000000000000968d R15: 00000000200000c0
addr ffffc90003026b00 is located in stack of task syz.3.110/3906 at offset 0 in frame:
_raw_spin_unlock_irqrestore+0x0/0x130
this frame has 1 object:
[32, 40) 'flags.i.i.i.i'
Memory state around the buggy address:
ffffc90003026a00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
ffffc90003026a80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffffc90003026b00: f1 f1 f1 f1 00 f3 f3 f3 00 00 00 00 00 00 00 00
^
ffffc90003026b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
ffffc90003026c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
==================================================================
----------------
Code disassembly (best guess):
0: 9c pushf
1: 8f 44 24 20 pop 0x20(%rsp)
5: 42 80 3c 23 00 cmpb $0x0,(%rbx,%r12,1)
a: 74 08 je 0x14
c: 4c 89 f7 mov %r14,%rdi
f: e8 62 6c a2 f7 call 0xf7a26c76
14: f6 44 24 21 02 testb $0x2,0x21(%rsp)
19: 75 4e jne 0x69
1b: 41 f7 c7 00 02 00 00 test $0x200,%r15d
22: 74 01 je 0x25
24: fb sti
25: bf 01 00 00 00 mov $0x1,%edi
* 2a: e8 57 ac 2f f7 call 0xf72fac86 <-- trapping instruction
2f: 65 8b 05 d8 b2 da 75 mov %gs:0x75dab2d8(%rip),%eax # 0x75dab30e
36: 85 c0 test %eax,%eax
38: 74 3f je 0x79
3a: 48 rex.W
3b: c7 .byte 0xc7
3c: 04 24 add $0x24,%al
3e: 0e (bad)
3f: 36 ss