==================================================================
BUG: KASAN: slab-use-after-free in instrument_atomic_read_write include/linux/instrumented.h:96 [inline]
BUG: KASAN: slab-use-after-free in atomic_dec_and_test include/linux/atomic/atomic-instrumented.h:1375 [inline]
BUG: KASAN: slab-use-after-free in gfs2_qd_dealloc+0x88/0xf0 fs/gfs2/quota.c:117
Write of size 4 at addr ffff8880252bca78 by task swapper/0/0
CPU: 0 PID: 0 Comm: swapper/0 Not tainted 6.6.0-rc3-syzkaller-dirty #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e7/0x2d0 lib/dump_stack.c:106
print_address_description mm/kasan/report.c:364 [inline]
print_report+0x163/0x540 mm/kasan/report.c:475
kasan_report+0x175/0x1b0 mm/kasan/report.c:588
kasan_check_range+0x27e/0x290 mm/kasan/generic.c:187
instrument_atomic_read_write include/linux/instrumented.h:96 [inline]
atomic_dec_and_test include/linux/atomic/atomic-instrumented.h:1375 [inline]
gfs2_qd_dealloc+0x88/0xf0 fs/gfs2/quota.c:117
rcu_do_batch kernel/rcu/tree.c:2139 [inline]
rcu_core+0xacf/0x1790 kernel/rcu/tree.c:2403
__do_softirq+0x2ab/0x908 kernel/softirq.c:553
invoke_softirq kernel/softirq.c:427 [inline]
__irq_exit_rcu+0xf1/0x1b0 kernel/softirq.c:632
irq_exit_rcu+0x9/0x20 kernel/softirq.c:644
sysvec_apic_timer_interrupt+0x95/0xb0 arch/x86/kernel/apic/apic.c:1074
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645
RIP: 0010:native_irq_disable arch/x86/include/asm/irqflags.h:37 [inline]
RIP: 0010:arch_local_irq_disable arch/x86/include/asm/irqflags.h:72 [inline]
RIP: 0010:acpi_safe_halt+0x20/0x30 drivers/acpi/processor_idle.c:113
Code: 7f 04 eb 36 66 0f 1f 44 00 00 65 48 8b 05 e8 4b 36 75 48 f7 00 08 00 00 00 75 10 66 90 0f 00 2d 76 a5 95 00 f3 0f 1e fa fb f4 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 89 fa ec 48 8b 05
RSP: 0018:ffffffff8d007ca8 EFLAGS: 00000246
RAX: ffffffff8d094540 RBX: ffff888012ec6064 RCX: 000000000001eb49
RDX: 0000000000000001 RSI: ffff888012ec6000 RDI: ffff888012ec6064
RBP: 0000000000038df8 R08: ffff8880b9836bcb R09: 1ffff11017306d79
R10: dffffc0000000000 R11: ffffed1017306d7a R12: ffff888140ac5000
R13: 0000000000000000 R14: 0000000000000001 R15: ffffffff8da1f660
acpi_idle_enter+0xe4/0x140 drivers/acpi/processor_idle.c:707
cpuidle_enter_state+0x10e/0x470 drivers/cpuidle/cpuidle.c:267
cpuidle_enter+0x5d/0x90 drivers/cpuidle/cpuidle.c:388
call_cpuidle kernel/sched/idle.c:134 [inline]
cpuidle_idle_call kernel/sched/idle.c:215 [inline]
do_idle+0x374/0x5c0 kernel/sched/idle.c:282
cpu_startup_entry+0x41/0x60 kernel/sched/idle.c:380
rest_init+0x2e0/0x300 init/main.c:726
arch_call_rest_init+0xe/0x10 init/main.c:823
start_kernel+0x46e/0x4f0 init/main.c:1068
x86_64_start_reservations+0x2a/0x30 arch/x86/kernel/head64.c:556
x86_64_start_kernel+0x99/0xa0 arch/x86/kernel/head64.c:537
secondary_startup_64_no_verify+0x167/0x16b
Allocated by task 5805:
kasan_save_stack mm/kasan/common.c:45 [inline]
kasan_set_track+0x4f/0x70 mm/kasan/common.c:52
____kasan_kmalloc mm/kasan/common.c:374 [inline]
__kasan_kmalloc+0x98/0xb0 mm/kasan/common.c:383
kmalloc include/linux/slab.h:599 [inline]
kzalloc include/linux/slab.h:720 [inline]
init_sbd fs/gfs2/ops_fstype.c:77 [inline]
gfs2_fill_super+0x136/0x26c0 fs/gfs2/ops_fstype.c:1164
get_tree_bdev+0x416/0x5b0 fs/super.c:1577
gfs2_get_tree+0x54/0x210 fs/gfs2/ops_fstype.c:1348
vfs_get_tree+0x8c/0x280 fs/super.c:1750
do_new_mount+0x28f/0xae0 fs/namespace.c:3335
do_mount fs/namespace.c:3675 [inline]
__do_sys_mount fs/namespace.c:3884 [inline]
__se_sys_mount+0x2d9/0x3c0 fs/namespace.c:3861
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
Freed by task 5392:
kasan_save_stack mm/kasan/common.c:45 [inline]
kasan_set_track+0x4f/0x70 mm/kasan/common.c:52
kasan_save_free_info+0x28/0x40 mm/kasan/generic.c:522
____kasan_slab_free+0xd6/0x120 mm/kasan/common.c:236
kasan_slab_free include/linux/kasan.h:164 [inline]
slab_free_hook mm/slub.c:1800 [inline]
slab_free_freelist_hook mm/slub.c:1826 [inline]
slab_free mm/slub.c:3809 [inline]
__kmem_cache_free+0x25f/0x3b0 mm/slub.c:3822
generic_shutdown_super+0x13a/0x2c0 fs/super.c:693
kill_block_super+0x41/0x70 fs/super.c:1646
deactivate_locked_super+0xa4/0x110 fs/super.c:481
cleanup_mnt+0x426/0x4c0 fs/namespace.c:1254
task_work_run+0x24a/0x300 kernel/task_work.c:180
resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
exit_to_user_mode_loop+0xde/0x100 kernel/entry/common.c:171
exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:204
__syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]
syscall_exit_to_user_mode+0x64/0x280 kernel/entry/common.c:296
do_syscall_64+0x4d/0xc0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x63/0xcd
The buggy address belongs to the object at ffff8880252bc000
which belongs to the cache kmalloc-8k of size 8192
The buggy address is located 2680 bytes inside of
freed 8192-byte region [ffff8880252bc000, ffff8880252be000)
The buggy address belongs to the physical page:
page:ffffea000094ae00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x252b8
head:ffffea000094ae00 order:3 entire_mapcount:0 nr_pages_mapped:0 pincount:0
flags: 0xfff00000000840(slab|head|node=0|zone=1|lastcpupid=0x7ff)
page_type: 0xffffffff()
raw: 00fff00000000840 ffff888012842280 ffffea0000909c00 0000000000000002
raw: 0000000000000000 0000000080020002 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd2040(__GFP_IO|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 4708, tgid 4708 (dhcpcd-run-hook), ts 45194433683, free_ts 45158202311
set_page_owner include/linux/page_owner.h:31 [inline]
post_alloc_hook+0x1e6/0x210 mm/page_alloc.c:1536
prep_new_page mm/page_alloc.c:1543 [inline]
get_page_from_freelist+0x31db/0x3360 mm/page_alloc.c:3170
__alloc_pages+0x255/0x670 mm/page_alloc.c:4426
alloc_slab_page+0x6a/0x160 mm/slub.c:1870
allocate_slab mm/slub.c:2017 [inline]
new_slab+0x84/0x2f0 mm/slub.c:2070
___slab_alloc+0xc85/0x1310 mm/slub.c:3223
__slab_alloc mm/slub.c:3322 [inline]
__slab_alloc_node mm/slub.c:3375 [inline]
slab_alloc_node mm/slub.c:3468 [inline]
__kmem_cache_alloc_node+0x1af/0x270 mm/slub.c:3517
kmalloc_trace+0x2a/0xe0 mm/slab_common.c:1114
kmalloc include/linux/slab.h:599 [inline]
kzalloc include/linux/slab.h:720 [inline]
tomoyo_print_bprm security/tomoyo/audit.c:26 [inline]
tomoyo_init_log+0x11cd/0x2040 security/tomoyo/audit.c:264
tomoyo_supervisor+0x386/0x11f0 security/tomoyo/common.c:2089
tomoyo_audit_env_log security/tomoyo/environ.c:36 [inline]
tomoyo_env_perm+0x178/0x210 security/tomoyo/environ.c:63
tomoyo_environ security/tomoyo/domain.c:672 [inline]
tomoyo_find_next_domain+0x1383/0x1cf0 security/tomoyo/domain.c:878
tomoyo_bprm_check_security+0x114/0x170 security/tomoyo/tomoyo.c:101
security_bprm_check+0x63/0xa0 security/security.c:1103
search_binary_handler fs/exec.c:1727 [inline]
exec_binprm fs/exec.c:1781 [inline]
bprm_execve+0x8c7/0x17c0 fs/exec.c:1856
do_execveat_common+0x580/0x720 fs/exec.c:1964
page last free stack trace:
reset_page_owner include/linux/page_owner.h:24 [inline]
free_pages_prepare mm/page_alloc.c:1136 [inline]
free_unref_page_prepare+0x8c3/0x9f0 mm/page_alloc.c:2312
free_unref_page+0x37/0x3f0 mm/page_alloc.c:2405
discard_slab mm/slub.c:2116 [inline]
__unfreeze_partials+0x1dc/0x220 mm/slub.c:2655
put_cpu_partial+0x17b/0x250 mm/slub.c:2731
__slab_free+0x2b6/0x390 mm/slub.c:3679
qlink_free mm/kasan/quarantine.c:166 [inline]
qlist_free_all+0x75/0xe0 mm/kasan/quarantine.c:185
kasan_quarantine_reduce+0x14b/0x160 mm/kasan/quarantine.c:292
__kasan_slab_alloc+0x23/0x70 mm/kasan/common.c:305
kasan_slab_alloc include/linux/kasan.h:188 [inline]
slab_post_alloc_hook+0x67/0x3d0 mm/slab.h:762
slab_alloc_node mm/slub.c:3478 [inline]
__kmem_cache_alloc_node+0x141/0x270 mm/slub.c:3517
__do_kmalloc_node mm/slab_common.c:1022 [inline]
__kmalloc_node_track_caller+0xa5/0x230 mm/slab_common.c:1043
__do_krealloc mm/slab_common.c:1411 [inline]
krealloc+0x79/0x110 mm/slab_common.c:1444
ima_collect_measurement+0x54a/0x890 security/integrity/ima/ima_api.c:296
process_measurement+0xfea/0x1cf0 security/integrity/ima/ima_main.c:345
ima_bprm_check+0x128/0x2b0 security/integrity/ima/ima_main.c:518
search_binary_handler fs/exec.c:1727 [inline]
exec_binprm fs/exec.c:1781 [inline]
bprm_execve+0x8c7/0x17c0 fs/exec.c:1856
Memory state around the buggy address:
ffff8880252bc900: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff8880252bc980: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff8880252bca00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
^
ffff8880252bca80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff8880252bcb00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
----------------
Code disassembly (best guess):
0: 7f 04 jg 0x6
2: eb 36 jmp 0x3a
4: 66 0f 1f 44 00 00 nopw 0x0(%rax,%rax,1)
a: 65 48 8b 05 e8 4b 36 mov %gs:0x75364be8(%rip),%rax # 0x75364bfa
11: 75
12: 48 f7 00 08 00 00 00 testq $0x8,(%rax)
19: 75 10 jne 0x2b
1b: 66 90 xchg %ax,%ax
1d: 0f 00 2d 76 a5 95 00 verw 0x95a576(%rip) # 0x95a59a
24: f3 0f 1e fa endbr64
28: fb sti
29: f4 hlt
* 2a: fa cli <-- trapping instruction
2b: c3 ret
2c: 66 2e 0f 1f 84 00 00 cs nopw 0x0(%rax,%rax,1)
33: 00 00 00
36: 0f 1f 40 00 nopl 0x0(%rax)
3a: 89 fa mov %edi,%edx
3c: ec in (%dx),%al
3d: 48 rex.W
3e: 8b .byte 0x8b
3f: 05 .byte 0x5