==================================================================
BUG: KASAN: slab-out-of-bounds in hlist_move_list include/linux/list.h:852 [inline]
BUG: KASAN: slab-out-of-bounds in __collect_expired_timers kernel/time/timer.c:1484 [inline]
BUG: KASAN: slab-out-of-bounds in collect_expired_timers kernel/time/timer.c:1719 [inline]
BUG: KASAN: slab-out-of-bounds in __run_timers+0x4a8/0x6b0 kernel/time/timer.c:1783
Write of size 8 at addr ffff8881dbb731c8 by task syz-executor.5/2367
CPU: 0 PID: 2367 Comm: syz-executor.5 Not tainted 5.4.210-syzkaller-00019-g035e4939365c #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x18e/0x1d5 lib/dump_stack.c:118
print_address_description+0x8c/0x630 mm/kasan/report.c:384
__kasan_report+0xf6/0x130 mm/kasan/report.c:516
kasan_report+0x30/0x60 mm/kasan/common.c:653
hlist_move_list include/linux/list.h:852 [inline]
__collect_expired_timers kernel/time/timer.c:1484 [inline]
collect_expired_timers kernel/time/timer.c:1719 [inline]
__run_timers+0x4a8/0x6b0 kernel/time/timer.c:1783
run_timer_softirq+0x46/0x80 kernel/time/timer.c:1800
__do_softirq+0x23e/0x643 kernel/softirq.c:292
invoke_softirq kernel/softirq.c:373 [inline]
irq_exit+0x195/0x1c0 kernel/softirq.c:413
exiting_irq arch/x86/include/asm/apic.h:538 [inline]
smp_apic_timer_interrupt+0x113/0x440 arch/x86/kernel/apic/apic.c:1150
apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:831
RIP: 0010:get_current arch/x86/include/asm/current.h:15 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x4/0x50 kernel/kcov.c:186
Code: 00 00 00 0f 1f 00 be 0d 00 00 00 48 c7 c7 a0 c5 b0 85 e8 4f 6b 2c 00 c3 90 90 90 90 90 90 90 90 90 90 90 90 90 90 48 8b 04 24 <65> 48 8b 0c 25 80 8d 02 00 65 8b 15 98 f4 a1 7e f7 c2 00 01 1f 00
RSP: 0018:ffff8881eb4ff4c0 EFLAGS: 00000206 ORIG_RAX: ffffffffffffff13
RAX: ffffffff821d283d RBX: ffff8881c94cacdc RCX: ffff8881c99c1f80
RDX: dffffc0000000000 RSI: 000000000000000b RDI: ffff8881c94cace0
RBP: 000000000000000b R08: ffff8881c94cacdc R09: ffffffff84de78e8
R10: ffffffff84de72f0 R11: ffffffff84de7194 R12: ffffffff84de5ac0
R13: ffffffff84de62c0 R14: 00000000f6ccf944 R15: ffffffff84de5ec0
crc32_body lib/crc32.c:102 [inline]
crc32_le_generic lib/crc32.c:179 [inline]
__crc32c_le_base+0x21d/0xd00 lib/crc32.c:202
chksum_update+0x41/0x90 crypto/crc32c_generic.c:90
crypto_shash_update+0x1ac/0x260 crypto/shash.c:132
ext4_chksum fs/ext4/ext4.h:2143 [inline]
ext4_inode_csum+0x6b2/0xa20 fs/ext4/inode.c:79
ext4_inode_csum_set fs/ext4/inode.c:117 [inline]
ext4_do_update_inode fs/ext4/inode.c:5462 [inline]
ext4_mark_iloc_dirty+0x1c00/0x32a0 fs/ext4/inode.c:6022
ext4_mark_inode_dirty+0x454/0x6c0 fs/ext4/inode.c:6216
ext4_dirty_inode+0x89/0xa0 fs/ext4/inode.c:6247
__mark_inode_dirty+0xb4/0x9f0 fs/fs-writeback.c:2249
mark_inode_dirty_sync include/linux/fs.h:2259 [inline]
dquot_free_space include/linux/quotaops.h:383 [inline]
dquot_free_block include/linux/quotaops.h:393 [inline]
ext4_mb_new_blocks+0x10be/0x2580 fs/ext4/mballoc.c:4620
ext4_ext_map_blocks+0x1648/0x3be0 fs/ext4/extents.c:4507
ext4_map_blocks+0x961/0x1a30 fs/ext4/inode.c:659
ext4_alloc_file_blocks+0x35b/0xc20 fs/ext4/extents.c:4696
ext4_fallocate+0x3c9/0x580 fs/ext4/extents.c:4983
vfs_fallocate+0x51f/0x680 fs/open.c:309
ioctl_preallocate fs/ioctl.c:519 [inline]
file_ioctl fs/ioctl.c:535 [inline]
do_vfs_ioctl+0x1269/0x15b0 fs/ioctl.c:725
ksys_ioctl fs/ioctl.c:742 [inline]
__do_sys_ioctl fs/ioctl.c:749 [inline]
__se_sys_ioctl fs/ioctl.c:747 [inline]
__x64_sys_ioctl+0xd4/0x110 fs/ioctl.c:747
do_syscall_64+0xcb/0x1c0 arch/x86/entry/common.c:290
entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x7f0c105865a9
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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f0c0f2fa168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f0c106a6f80 RCX: 00007f0c105865a9
RDX: 0000000020000040 RSI: 000000004030582a RDI: 0000000000000004
RBP: 00007f0c105e17b0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe5dd0baef R14: 00007f0c0f2fa300 R15: 0000000000022000
Allocated by task 2242:
save_stack mm/kasan/common.c:70 [inline]
set_track mm/kasan/common.c:78 [inline]
__kasan_kmalloc+0x131/0x1e0 mm/kasan/common.c:529
kmalloc include/linux/slab.h:556 [inline]
kzalloc include/linux/slab.h:690 [inline]
kobject_uevent_env+0x26d/0x700 lib/kobject_uevent.c:524
netdev_queue_add_kobject net/core/net-sysfs.c:1578 [inline]
netdev_queue_update_kobjects+0x1a5/0x3b0 net/core/net-sysfs.c:1595
register_queue_kobjects net/core/net-sysfs.c:1637 [inline]
netdev_register_kobject+0x263/0x310 net/core/net-sysfs.c:1858
register_netdevice+0xac8/0x1140 net/core/dev.c:9175
__ip_tunnel_create+0x246/0x2f0 net/ipv4/ip_tunnel.c:267
ip_tunnel_init_net+0x230/0x6c0 net/ipv4/ip_tunnel.c:1062
ops_init+0x278/0x350 net/core/net_namespace.c:137
setup_net+0x1bb/0x9e0 net/core/net_namespace.c:338
copy_net_ns+0x31a/0x510 net/core/net_namespace.c:479
create_new_namespaces+0x4e3/0x5f0 kernel/nsproxy.c:103
copy_namespaces+0x169/0x1b0 kernel/nsproxy.c:161
copy_process+0x12a4/0x31f0 kernel/fork.c:2044
_do_fork+0x142/0x7f0 kernel/fork.c:2391
__do_sys_clone kernel/fork.c:2549 [inline]
__se_sys_clone kernel/fork.c:2530 [inline]
__x64_sys_clone+0x213/0x260 kernel/fork.c:2530
do_syscall_64+0xcb/0x1c0 arch/x86/entry/common.c:290
entry_SYSCALL_64_after_hwframe+0x44/0xa9
Freed by task 2242:
save_stack mm/kasan/common.c:70 [inline]
set_track mm/kasan/common.c:78 [inline]
kasan_set_free_info mm/kasan/common.c:345 [inline]
__kasan_slab_free+0x178/0x240 mm/kasan/common.c:487
slab_free_hook mm/slub.c:1455 [inline]
slab_free_freelist_hook+0x80/0x150 mm/slub.c:1494
slab_free mm/slub.c:3080 [inline]
kfree+0xc6/0x260 mm/slub.c:4071
kobject_uevent_env+0x352/0x700 lib/kobject_uevent.c:626
netdev_queue_add_kobject net/core/net-sysfs.c:1578 [inline]
netdev_queue_update_kobjects+0x1a5/0x3b0 net/core/net-sysfs.c:1595
register_queue_kobjects net/core/net-sysfs.c:1637 [inline]
netdev_register_kobject+0x263/0x310 net/core/net-sysfs.c:1858
register_netdevice+0xac8/0x1140 net/core/dev.c:9175
__ip_tunnel_create+0x246/0x2f0 net/ipv4/ip_tunnel.c:267
ip_tunnel_init_net+0x230/0x6c0 net/ipv4/ip_tunnel.c:1062
ops_init+0x278/0x350 net/core/net_namespace.c:137
setup_net+0x1bb/0x9e0 net/core/net_namespace.c:338
copy_net_ns+0x31a/0x510 net/core/net_namespace.c:479
create_new_namespaces+0x4e3/0x5f0 kernel/nsproxy.c:103
copy_namespaces+0x169/0x1b0 kernel/nsproxy.c:161
copy_process+0x12a4/0x31f0 kernel/fork.c:2044
_do_fork+0x142/0x7f0 kernel/fork.c:2391
__do_sys_clone kernel/fork.c:2549 [inline]
__se_sys_clone kernel/fork.c:2530 [inline]
__x64_sys_clone+0x213/0x260 kernel/fork.c:2530
do_syscall_64+0xcb/0x1c0 arch/x86/entry/common.c:290
entry_SYSCALL_64_after_hwframe+0x44/0xa9
The buggy address belongs to the object at ffff8881dbb72000
which belongs to the cache kmalloc-4k of size 4096
The buggy address is located 456 bytes to the right of
4096-byte region [ffff8881dbb72000, ffff8881dbb73000)
The buggy address belongs to the page:
page:ffffea00076edc00 refcount:1 mapcount:0 mapping:ffff8881f5c0c280 index:0x0 compound_mapcount: 0
flags: 0x8000000000010200(slab|head)
raw: 8000000000010200 dead000000000100 dead000000000122 ffff8881f5c0c280
raw: 0000000000000000 0000000000040004 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 0x1d20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC|__GFP_HARDWALL)
set_page_owner include/linux/page_owner.h:31 [inline]
post_alloc_hook mm/page_alloc.c:2165 [inline]
prep_new_page+0x194/0x380 mm/page_alloc.c:2171
get_page_from_freelist+0x524/0x560 mm/page_alloc.c:3794
__alloc_pages_nodemask+0x2ab/0x6f0 mm/page_alloc.c:4857
alloc_slab_page+0x39/0x3e0 mm/slub.c:343
allocate_slab mm/slub.c:1683 [inline]
new_slab+0x97/0x450 mm/slub.c:1749
new_slab_objects mm/slub.c:2505 [inline]
___slab_alloc+0x320/0x4a0 mm/slub.c:2667
__slab_alloc+0x5a/0x90 mm/slub.c:2707
slab_alloc_node mm/slub.c:2792 [inline]
slab_alloc mm/slub.c:2837 [inline]
kmem_cache_alloc_trace+0x129/0x240 mm/slub.c:2854
kmalloc include/linux/slab.h:556 [inline]
kzalloc include/linux/slab.h:690 [inline]
kobject_uevent_env+0x26d/0x700 lib/kobject_uevent.c:524
device_add+0x7a7/0xbc0 drivers/base/core.c:2889
netdev_register_kobject+0x178/0x310 net/core/net-sysfs.c:1854
register_netdevice+0xac8/0x1140 net/core/dev.c:9175
__ip_tunnel_create+0x246/0x2f0 net/ipv4/ip_tunnel.c:267
ip_tunnel_init_net+0x230/0x6c0 net/ipv4/ip_tunnel.c:1062
ops_init+0x278/0x350 net/core/net_namespace.c:137
setup_net+0x1bb/0x9e0 net/core/net_namespace.c:338
page last free stack trace:
reset_page_owner include/linux/page_owner.h:24 [inline]
free_pages_prepare mm/page_alloc.c:1176 [inline]
__free_pages_ok+0x7ee/0x920 mm/page_alloc.c:1438
free_the_page mm/page_alloc.c:4919 [inline]
__free_pages+0x45/0x1e0 mm/page_alloc.c:4925
free_thread_stack kernel/fork.c:299 [inline]
release_task_stack kernel/fork.c:439 [inline]
put_task_stack+0x21a/0x270 kernel/fork.c:450
finish_task_switch+0x248/0x560 kernel/sched/core.c:3476
context_switch kernel/sched/core.c:3608 [inline]
__schedule+0x8d3/0xfc0 kernel/sched/core.c:4305
schedule+0x13b/0x1d0 kernel/sched/core.c:4373
schedule_hrtimeout_range_clock+0x176/0x290 kernel/time/hrtimer.c:2194
freezable_schedule_hrtimeout_range include/linux/freezer.h:239 [inline]
ep_poll fs/eventpoll.c:1915 [inline]
do_epoll_wait+0xe32/0x1060 fs/eventpoll.c:2293
__do_sys_epoll_pwait fs/eventpoll.c:2324 [inline]
__se_sys_epoll_pwait+0x56/0x170 fs/eventpoll.c:2310
do_syscall_64+0xcb/0x1c0 arch/x86/entry/common.c:290
entry_SYSCALL_64_after_hwframe+0x44/0xa9
Memory state around the buggy address:
ffff8881dbb73080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
ffff8881dbb73100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff8881dbb73180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
^
ffff8881dbb73200: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
ffff8881dbb73280: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
==================================================================
BUG: kernel NULL pointer dereference, address: 0000000000000000
#PF: supervisor instruction fetch in kernel mode
#PF: error_code(0x0010) - not-present page
PGD 1eeb79067 P4D 1eeb79067 PUD 1ec15c067 PMD 0
Oops: 0010 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 2367 Comm: syz-executor.5 Tainted: G B 5.4.210-syzkaller-00019-g035e4939365c #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022
RIP: 0010:0x0
Code: Bad RIP value.
RSP: 0018:ffff8881f6e09d30 EFLAGS: 00010202
RAX: ffffffff8151cbb9 RBX: 0000000000000101 RCX: ffff8881c99c1f80
RDX: 0000000000000101 RSI: 0000000000000000 RDI: ffff8881dbb731c0
RBP: ffff8881dbb731e0 R08: ffffffff8151c992 R09: ffffed103edc13a8
R10: ffffed103edc13a8 R11: 1ffff1103edc13a7 R12: 00000000ffffaa80
R13: 1ffff1103edc92f1 R14: 0000000000000000 R15: ffff8881dbb731c0
FS: 00007f0c0f2fa700(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffffffffd6 CR3: 00000001e4458000 CR4: 00000000003406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
call_timer_fn+0x31/0x350 kernel/time/timer.c:1418
expire_timers+0x21e/0x400 kernel/time/timer.c:1463
__run_timers+0x5b0/0x6b0 kernel/time/timer.c:1787
run_timer_softirq+0x46/0x80 kernel/time/timer.c:1800
__do_softirq+0x23e/0x643 kernel/softirq.c:292
invoke_softirq kernel/softirq.c:373 [inline]
irq_exit+0x195/0x1c0 kernel/softirq.c:413
exiting_irq arch/x86/include/asm/apic.h:538 [inline]
smp_apic_timer_interrupt+0x113/0x440 arch/x86/kernel/apic/apic.c:1150
apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:831
RIP: 0010:get_current arch/x86/include/asm/current.h:15 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x4/0x50 kernel/kcov.c:186
Code: 00 00 00 0f 1f 00 be 0d 00 00 00 48 c7 c7 a0 c5 b0 85 e8 4f 6b 2c 00 c3 90 90 90 90 90 90 90 90 90 90 90 90 90 90 48 8b 04 24 <65> 48 8b 0c 25 80 8d 02 00 65 8b 15 98 f4 a1 7e f7 c2 00 01 1f 00
RSP: 0018:ffff8881eb4ff4c0 EFLAGS: 00000206 ORIG_RAX: ffffffffffffff13
RAX: ffffffff821d283d RBX: ffff8881c94cacdc RCX: ffff8881c99c1f80
RDX: dffffc0000000000 RSI: 000000000000000b RDI: ffff8881c94cace0
RBP: 000000000000000b R08: ffff8881c94cacdc R09: ffffffff84de78e8
R10: ffffffff84de72f0 R11: ffffffff84de7194 R12: ffffffff84de5ac0
R13: ffffffff84de62c0 R14: 00000000f6ccf944 R15: ffffffff84de5ec0
crc32_body lib/crc32.c:102 [inline]
crc32_le_generic lib/crc32.c:179 [inline]
__crc32c_le_base+0x21d/0xd00 lib/crc32.c:202
chksum_update+0x41/0x90 crypto/crc32c_generic.c:90
crypto_shash_update+0x1ac/0x260 crypto/shash.c:132
ext4_chksum fs/ext4/ext4.h:2143 [inline]
ext4_inode_csum+0x6b2/0xa20 fs/ext4/inode.c:79
ext4_inode_csum_set fs/ext4/inode.c:117 [inline]
ext4_do_update_inode fs/ext4/inode.c:5462 [inline]
ext4_mark_iloc_dirty+0x1c00/0x32a0 fs/ext4/inode.c:6022
ext4_mark_inode_dirty+0x454/0x6c0 fs/ext4/inode.c:6216
ext4_dirty_inode+0x89/0xa0 fs/ext4/inode.c:6247
__mark_inode_dirty+0xb4/0x9f0 fs/fs-writeback.c:2249
mark_inode_dirty_sync include/linux/fs.h:2259 [inline]
dquot_free_space include/linux/quotaops.h:383 [inline]
dquot_free_block include/linux/quotaops.h:393 [inline]
ext4_mb_new_blocks+0x10be/0x2580 fs/ext4/mballoc.c:4620
ext4_ext_map_blocks+0x1648/0x3be0 fs/ext4/extents.c:4507
ext4_map_blocks+0x961/0x1a30 fs/ext4/inode.c:659
ext4_alloc_file_blocks+0x35b/0xc20 fs/ext4/extents.c:4696
ext4_fallocate+0x3c9/0x580 fs/ext4/extents.c:4983
vfs_fallocate+0x51f/0x680 fs/open.c:309
ioctl_preallocate fs/ioctl.c:519 [inline]
file_ioctl fs/ioctl.c:535 [inline]
do_vfs_ioctl+0x1269/0x15b0 fs/ioctl.c:725
ksys_ioctl fs/ioctl.c:742 [inline]
__do_sys_ioctl fs/ioctl.c:749 [inline]
__se_sys_ioctl fs/ioctl.c:747 [inline]
__x64_sys_ioctl+0xd4/0x110 fs/ioctl.c:747
do_syscall_64+0xcb/0x1c0 arch/x86/entry/common.c:290
entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x7f0c105865a9
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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f0c0f2fa168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f0c106a6f80 RCX: 00007f0c105865a9
RDX: 0000000020000040 RSI: 000000004030582a RDI: 0000000000000004
RBP: 00007f0c105e17b0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe5dd0baef R14: 00007f0c0f2fa300 R15: 0000000000022000
Modules linked in:
CR2: 0000000000000000
---[ end trace 1210d8d9b22ae79b ]---
RIP: 0010:0x0
Code: Bad RIP value.
RSP: 0018:ffff8881f6e09d30 EFLAGS: 00010202
RAX: ffffffff8151cbb9 RBX: 0000000000000101 RCX: ffff8881c99c1f80
RDX: 0000000000000101 RSI: 0000000000000000 RDI: ffff8881dbb731c0
RBP: ffff8881dbb731e0 R08: ffffffff8151c992 R09: ffffed103edc13a8
R10: ffffed103edc13a8 R11: 1ffff1103edc13a7 R12: 00000000ffffaa80
R13: 1ffff1103edc92f1 R14: 0000000000000000 R15: ffff8881dbb731c0
FS: 00007f0c0f2fa700(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffffffffd6 CR3: 00000001e4458000 CR4: 00000000003406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess), 1 bytes skipped:
0: 00 00 add %al,(%rax)
2: 0f 1f 00 nopl (%rax)
5: be 0d 00 00 00 mov $0xd,%esi
a: 48 c7 c7 a0 c5 b0 85 mov $0xffffffff85b0c5a0,%rdi
11: e8 4f 6b 2c 00 callq 0x2c6b65
16: c3 retq
17: 90 nop
18: 90 nop
19: 90 nop
1a: 90 nop
1b: 90 nop
1c: 90 nop
1d: 90 nop
1e: 90 nop
1f: 90 nop
20: 90 nop
21: 90 nop
22: 90 nop
23: 90 nop
24: 90 nop
25: 48 8b 04 24 mov (%rsp),%rax
* 29: 65 48 8b 0c 25 80 8d mov %gs:0x28d80,%rcx <-- trapping instruction
30: 02 00
32: 65 8b 15 98 f4 a1 7e mov %gs:0x7ea1f498(%rip),%edx # 0x7ea1f4d1
39: f7 c2 00 01 1f 00 test $0x1f0100,%edx