Oops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] SMP KASAN NOPTI
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
CPU: 1 UID: 0 PID: 4014 Comm: systemd-udevd Tainted: G W 6.17.0-rc3-next-20250829 #1 PREEMPT(voluntary)
Tainted: [W]=WARN
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:__queue_work+0x202/0x1240
Code: 48 8b 6d 00 e8 4f 9e 79 03 31 ff 41 89 c5 89 c6 e8 93 f3 31 00 45 85 ed 0f 85 e1 05 00 00 e8 55 f8 31 00 48 89 e8 48 c1 e8 03 <42> 80 3c 20 00 0f 85 a0 0e 00 00 4c 8b 75 00 48 89 df 4c 89 34 24
RSP: 0018:ffff88801718f290 EFLAGS: 00010056
RAX: 0000000000000000 RBX: ffff88801e056618 RCX: ffffffff8141f51d
RDX: ffff8880467fb700 RSI: ffffffff8141ef2b RDI: 0000000000000005
RBP: 0000000000000001 R08: 0000000000000001 R09: fffffbfff0f11ef4
R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000
R13: 0000000000000001 R14: 0000000000000001 R15: ffff88801b96a000
FS: 00007f421d02a8c0(0000) GS:ffff8880e56dd000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000559e0fe732d8 CR3: 0000000045b2d000 CR4: 0000000000350ef0
Call Trace:
queue_work_on+0xd0/0xe0
loop_queue_rq+0x5c8/0x1180
__blk_mq_issue_directly+0xd5/0x260
blk_mq_request_issue_directly+0x11c/0x1e0
blk_mq_issue_direct+0x192/0x640
blk_mq_dispatch_queue_requests+0x4b0/0x7c0
blk_mq_flush_plug_list+0x1ec/0x5b0
__blk_flush_plug+0x25c/0x460
blk_finish_plug+0x53/0xa0
read_pages+0x51b/0xb10
page_cache_ra_unbounded+0x391/0x6a0
force_page_cache_ra+0x253/0x370
page_cache_sync_ra+0x104/0xaa0
filemap_get_pages+0x354/0x18e0
filemap_read+0x388/0xcf0
blkdev_read_iter+0x1a3/0x510
vfs_read+0x868/0xc70
ksys_read+0x121/0x240
do_syscall_64+0xbf/0x360
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f421d5c304e
Code: 0f 1f 40 00 48 8b 15 79 9f 00 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb ba 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 0f 05 <48> 3d 00 f0 ff ff 77 5a c3 66 0f 1f 84 00 00 00 00 00 48 83 ec 28
kmemleak: Found object by alias at 0x607f1a639124
CPU: 0 UID: 0 PID: 4002 Comm: syz-executor.2 Tainted: G W 6.17.0-rc3-next-20250829 #1 PREEMPT(voluntary)
Tainted: [W]=WARN
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
Call Trace:
dump_stack_lvl+0xca/0x120
__lookup_object+0x94/0xb0
delete_object_full+0x27/0x70
free_percpu+0x30/0x1160
futex_hash_free+0x38/0xc0
mmput+0x2d3/0x390
do_exit+0x79d/0x2970
do_group_exit+0xd3/0x2a0
get_signal+0x2315/0x2340
arch_do_signal_or_restart+0x80/0x790
exit_to_user_mode_loop+0x8b/0x110
do_syscall_64+0x2f7/0x360
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f445b13fb19
Code: Unable to access opcode bytes at 0x7f445b13faef.
RSP: 002b:00007f44586b5218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007f445b252f68 RCX: 00007f445b13fb19
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f445b252f68
RBP: 00007f445b252f60 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f445b252f6c
R13: 00007ffe572539bf R14: 00007f44586b5300 R15: 0000000000022000
kmemleak: Object (percpu) 0x607f1a639120 (size 8):
kmemleak: comm "systemd-udevd", pid 4014, jiffies 4294816757
kmemleak: min_count = 1
kmemleak: count = 0
kmemleak: flags = 0x21
kmemleak: checksum = 0
kmemleak: backtrace:
pcpu_alloc_noprof+0x87a/0x1170
percpu_ref_init+0x37/0x400
blkg_alloc+0xe9/0x7d0
blkg_create+0xe08/0x1420
bio_associate_blkg_from_css+0xe06/0x1380
bio_associate_blkg+0x10e/0x2a0
bio_init+0x2dd/0x570
bio_alloc_bioset+0x2cf/0x8c0
do_mpage_readpage.isra.0+0xc9c/0x15e0
mpage_readahead+0x31e/0x550
read_pages+0x196/0xb10
page_cache_ra_unbounded+0x391/0x6a0
force_page_cache_ra+0x253/0x370
page_cache_sync_ra+0x104/0xaa0
filemap_get_pages+0x354/0x18e0
filemap_read+0x388/0xcf0
RSP: 002b:00007ffd9f92fd78 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 0000559e0fe3caf8 RCX: 00007f421d5c304e
RDX: 0000000000000400 RSI: 0000559e0fe3cb08 RDI: 0000000000000010
RBP: 0000559e0f5d6080 R08: 0000559e0fe3cae0 R09: 00007f421d5a9be0
R10: 0000000000000008 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000400 R14: 0000559e0fe3cae0 R15: 0000559e0f5d60d0
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__queue_work+0x202/0x1240
Code: 48 8b 6d 00 e8 4f 9e 79 03 31 ff 41 89 c5 89 c6 e8 93 f3 31 00 45 85 ed 0f 85 e1 05 00 00 e8 55 f8 31 00 48 89 e8 48 c1 e8 03 <42> 80 3c 20 00 0f 85 a0 0e 00 00 4c 8b 75 00 48 89 df 4c 89 34 24
RSP: 0018:ffff88801718f290 EFLAGS: 00010056
RAX: 0000000000000000 RBX: ffff88801e056618 RCX: ffffffff8141f51d
RDX: ffff8880467fb700 RSI: ffffffff8141ef2b RDI: 0000000000000005
RBP: 0000000000000001 R08: 0000000000000001 R09: fffffbfff0f11ef4
R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000
R13: 0000000000000001 R14: 0000000000000001 R15: ffff88801b96a000
FS: 00007f421d02a8c0(0000) GS:ffff8880e56dd000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000559e0fe732d8 CR3: 0000000045b2d000 CR4: 0000000000350ef0
note: systemd-udevd[4014] exited with irqs disabled
note: systemd-udevd[4014] exited with preempt_count 1
------------[ cut here ]------------
WARNING: kernel/exit.c:898 at do_exit+0x1c36/0x2970, CPU#1: systemd-udevd/4014
Modules linked in:
CPU: 1 UID: 0 PID: 4014 Comm: systemd-udevd Tainted: G D W 6.17.0-rc3-next-20250829 #1 PREEMPT(voluntary)
Tainted: [D]=DIE, [W]=WARN
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:do_exit+0x1c36/0x2970
Code: 96 0a 00 00 c7 43 18 00 00 00 00 e9 21 e6 ff ff e8 bf a4 38 00 bf 02 24 00 00 e8 f5 ab 0b 00 e9 41 ff ff ff e8 ab a4 38 00 90 <0f> 0b 90 e9 87 e4 ff ff e8 9d a4 38 00 4c 89 e6 bf 05 06 00 00 e8
RSP: 0018:ffff88801718fe40 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 0000000000000200 RCX: ffffffff813b2727
RDX: ffff8880467fb700 RSI: ffffffff813b42d5 RDI: ffff8880467fc8e8
RBP: ffff8880467fb700 R08: 0000000000000001 R09: fffffbfff0f11cd8
R10: 0000000000000200 R11: 0000000000000001 R12: 000000000000000b
R13: 0000000000002710 R14: dffffc0000000000 R15: 0000000000000000
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pid=4016 comm=syz-executor.4
FS: 00007f421d02a8c0(0000) GS:ffff8880e56dd000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000559e0fe732d8 CR3: 0000000045b2d000 CR4: 0000000000350ef0
Call Trace:
make_task_dead+0x174/0x3b0
rewind_stack_and_make_dead+0x16/0x20
RIP: 0033:0x7f421d5c304e
Code: 0f 1f 40 00 48 8b 15 79 9f 00 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb ba 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 0f 05 <48> 3d 00 f0 ff ff 77 5a c3 66 0f 1f 84 00 00 00 00 00 48 83 ec 28
RSP: 002b:00007ffd9f92fd78 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pid=4016 comm=syz-executor.4
RAX: ffffffffffffffda RBX: 0000559e0fe3caf8 RCX: 00007f421d5c304e
RDX: 0000000000000400 RSI: 0000559e0fe3cb08 RDI: 0000000000000010
RBP: 0000559e0f5d6080 R08: 0000559e0fe3cae0 R09: 00007f421d5a9be0
R10: 0000000000000008 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000400 R14: 0000559e0fe3cae0 R15: 0000559e0f5d60d0
irq event stamp: 1868
hardirqs last enabled at (1867): [] ktime_get+0x1c7/0x270
hardirqs last disabled at (1868): [] _raw_spin_lock_irq+0x42/0x50
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=2166 sclass=netlink_route_socket pid=4019 comm=syz-executor.2
softirqs last enabled at (1778): [] handle_softirqs+0x50c/0x770
softirqs last disabled at (1743): [] __irq_exit_rcu+0xc4/0x100
---[ end trace 0000000000000000 ]---
BUG: sleeping function called from invalid context at ./include/linux/percpu-rwsem.h:51
in_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 4014, name: systemd-udevd
preempt_count: 0, expected: 0
RCU nest depth: 2, expected: 0
INFO: lockdep is turned off.
CPU: 1 UID: 0 PID: 4014 Comm: systemd-udevd Tainted: G D W 6.17.0-rc3-next-20250829 #1 PREEMPT(voluntary)
Tainted: [D]=DIE, [W]=WARN
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
Call Trace:
dump_stack_lvl+0xfa/0x120
__might_resched+0x2f3/0x510
exit_signals+0x25/0x940
do_exit+0x2db/0x2970
make_task_dead+0x174/0x3b0
rewind_stack_and_make_dead+0x16/0x20
RIP: 0033:0x7f421d5c304e
Code: 0f 1f 40 00 48 8b 15 79 9f 00 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb ba 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 0f 05 <48> 3d 00 f0 ff ff 77 5a c3 66 0f 1f 84 00 00 00 00 00 48 83 ec 28
RSP: 002b:00007ffd9f92fd78 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 0000559e0fe3caf8 RCX: 00007f421d5c304e
RDX: 0000000000000400 RSI: 0000559e0fe3cb08 RDI: 0000000000000010
RBP: 0000559e0f5d6080 R08: 0000559e0fe3cae0 R09: 00007f421d5a9be0
R10: 0000000000000008 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000400 R14: 0000559e0fe3cae0 R15: 0000559e0f5d60d0
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=2166 sclass=netlink_route_socket pid=4019 comm=syz-executor.2
kmemleak: Found object by alias at 0x607f1a639124
CPU: 0 UID: 0 PID: 4019 Comm: syz-executor.2 Tainted: G D W 6.17.0-rc3-next-20250829 #1 PREEMPT(voluntary)
Tainted: [D]=DIE, [W]=WARN
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
Call Trace:
dump_stack_lvl+0xca/0x120
__lookup_object+0x94/0xb0
delete_object_full+0x27/0x70
free_percpu+0x30/0x1160
futex_hash_free+0x38/0xc0
mmput+0x2d3/0x390
do_exit+0x79d/0x2970
do_group_exit+0xd3/0x2a0
get_signal+0x2315/0x2340
arch_do_signal_or_restart+0x80/0x790
exit_to_user_mode_loop+0x8b/0x110
do_syscall_64+0x2f7/0x360
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f445b13fb19
Code: Unable to access opcode bytes at 0x7f445b13faef.
RSP: 002b:00007f44586b5188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: 0000000000000024 RBX: 00007f445b252f60 RCX: 00007f445b13fb19
RDX: 0000000020000010 RSI: 0000000020000380 RDI: 0000000000000003
RBP: 00007f445b199f6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe572539bf R14: 00007f44586b5300 R15: 0000000000022000
kmemleak: Object (percpu) 0x607f1a639120 (size 8):
kmemleak: comm "systemd-udevd", pid 4014, jiffies 4294816757
kmemleak: min_count = 1
kmemleak: count = 0
kmemleak: flags = 0x21
kmemleak: checksum = 0
kmemleak: backtrace:
pcpu_alloc_noprof+0x87a/0x1170
percpu_ref_init+0x37/0x400
blkg_alloc+0xe9/0x7d0
blkg_create+0xe08/0x1420
bio_associate_blkg_from_css+0xe06/0x1380
bio_associate_blkg+0x10e/0x2a0
bio_init+0x2dd/0x570
bio_alloc_bioset+0x2cf/0x8c0
do_mpage_readpage.isra.0+0xc9c/0x15e0
mpage_readahead+0x31e/0x550
read_pages+0x196/0xb10
page_cache_ra_unbounded+0x391/0x6a0
force_page_cache_ra+0x253/0x370
page_cache_sync_ra+0x104/0xaa0
filemap_get_pages+0x354/0x18e0
filemap_read+0x388/0xcf0
I/O error, dev loop3, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2
FAT-fs (loop3): unable to read boot sector
loop4: detected capacity change from 0 to 512
EXT4-fs (loop4): ext4_check_descriptors: Inode bitmap for group 0 not in group (block 33619980)!
EXT4-fs (loop4): group descriptors corrupted!
loop4: detected capacity change from 0 to 512
EXT4-fs (loop4): ext4_check_descriptors: Inode bitmap for group 0 not in group (block 33619980)!
EXT4-fs (loop4): group descriptors corrupted!
Oops: general protection fault, probably for non-canonical address 0xe01ffc0000000115: 0000 [#2] SMP KASAN NOPTI
KASAN: maybe wild-memory-access in range [0x01000000000008a8-0x01000000000008af]
CPU: 1 UID: 0 PID: 4014 Comm: systemd-udevd Tainted: G D W 6.17.0-rc3-next-20250829 #1 PREEMPT(voluntary)
Tainted: [D]=DIE, [W]=WARN
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:__blk_flush_plug+0x1d8/0x460
Code: 00 00 49 8d 78 08 49 8b 08 48 89 fa 48 c1 ea 03 42 80 3c 3a 00 0f 85 a6 01 00 00 48 8d 79 08 49 8b 50 08 48 89 fe 48 c1 ee 03 <42> 80 3c 3e 00 0f 85 aa 01 00 00 48 89 d6 48 89 51 08 48 c1 ee 03
RSP: 0018:ffff88801718f660 EFLAGS: 00010212
RAX: 0000000000000000 RBX: ffff88801718f6b8 RCX: 01000000000008a1
RDX: ffff88801718f6b8 RSI: 0020000000000115 RDI: 01000000000008a9
RBP: 0000000000000001 R08: ffffea0000387880 R09: ffffed1008cff6e3
R10: 0000000000000000 R11: 0000000000000000 R12: dead000000000122
R13: dead000000000100 R14: ffff88801718f758 R15: dffffc0000000000
FS: 0000000000000000(0000) GS:ffff8880e56dd000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f719b52a5e8 CR3: 000000000d4e2000 CR4: 0000000000350ef0
Call Trace:
io_schedule+0xba/0x130
folio_wait_bit_common+0x388/0x900
__filemap_get_folio+0x599/0x960
truncate_inode_pages_range+0x315/0xce0
blkdev_flush_mapping+0xf9/0x2a0
blkdev_put_whole+0xc4/0xf0
bdev_release+0x47d/0x6f0
blkdev_release+0x15/0x20
__fput+0x401/0xb50
task_work_run+0x172/0x280
do_exit+0x846/0x2970
make_task_dead+0x174/0x3b0
rewind_stack_and_make_dead+0x16/0x20
RIP: 0033:0x7f421d5c304e
Code: Unable to access opcode bytes at 0x7f421d5c3024.
RSP: 002b:00007ffd9f92fd78 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 0000559e0fe3caf8 RCX: 00007f421d5c304e
RDX: 0000000000000400 RSI: 0000559e0fe3cb08 RDI: 0000000000000010
RBP: 0000559e0f5d6080 R08: 0000559e0fe3cae0 R09: 00007f421d5a9be0
R10: 0000000000000008 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000400 R14: 0000559e0fe3cae0 R15: 0000559e0f5d60d0
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__queue_work+0x202/0x1240
Code: 48 8b 6d 00 e8 4f 9e 79 03 31 ff 41 89 c5 89 c6 e8 93 f3 31 00 45 85 ed 0f 85 e1 05 00 00 e8 55 f8 31 00 48 89 e8 48 c1 e8 03 <42> 80 3c 20 00 0f 85 a0 0e 00 00 4c 8b 75 00 48 89 df 4c 89 34 24
RSP: 0018:ffff88801718f290 EFLAGS: 00010056
RAX: 0000000000000000 RBX: ffff88801e056618 RCX: ffffffff8141f51d
RDX: ffff8880467fb700 RSI: ffffffff8141ef2b RDI: 0000000000000005
RBP: 0000000000000001 R08: 0000000000000001 R09: fffffbfff0f11ef4
R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000
R13: 0000000000000001 R14: 0000000000000001 R15: ffff88801b96a000
FS: 0000000000000000(0000) GS:ffff8880e56dd000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f719b52a5e8 CR3: 000000000d4e2000 CR4: 0000000000350ef0
Fixing recursive fault but reboot is needed!
BUG: scheduling while atomic: systemd-udevd/4014/0x00000000
INFO: lockdep is turned off.
Modules linked in:
CPU: 1 UID: 0 PID: 4014 Comm: systemd-udevd Tainted: G D W 6.17.0-rc3-next-20250829 #1 PREEMPT(voluntary)
Tainted: [D]=DIE, [W]=WARN
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
Call Trace:
dump_stack_lvl+0xfa/0x120
__schedule_bug+0xb9/0x100
__schedule+0x24f3/0x3590
do_task_dead+0xdc/0x110
make_task_dead+0x373/0x3b0
rewind_stack_and_make_dead+0x16/0x20
RIP: 0033:0x7f421d5c304e
Code: Unable to access opcode bytes at 0x7f421d5c3024.
RSP: 002b:00007ffd9f92fd78 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 0000559e0fe3caf8 RCX: 00007f421d5c304e
RDX: 0000000000000400 RSI: 0000559e0fe3cb08 RDI: 0000000000000010
RBP: 0000559e0f5d6080 R08: 0000559e0fe3cae0 R09: 00007f421d5a9be0
R10: 0000000000000008 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000400 R14: 0000559e0fe3cae0 R15: 0000559e0f5d60d0
------------[ cut here ]------------
Voluntary context switch within RCU read-side critical section!
WARNING: kernel/rcu/tree_plugin.h:332 at rcu_note_context_switch+0xa96/0x1b00, CPU#1: systemd-udevd/4014
Modules linked in:
CPU: 1 UID: 0 PID: 4014 Comm: systemd-udevd Tainted: G D W 6.17.0-rc3-next-20250829 #1 PREEMPT(voluntary)
Tainted: [D]=DIE, [W]=WARN
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:rcu_note_context_switch+0xa96/0x1b00
Code: 00 00 00 65 48 8b 3d 41 8c 27 06 e8 84 11 fd ff e9 1a f8 ff ff c6 05 9a 42 e4 04 01 90 48 c7 c7 a0 8a c9 84 e8 0b 39 dd ff 90 <0f> 0b 90 90 e9 3a f6 ff ff 48 b8 00 00 00 00 00 fc ff df 48 c1 ea
RSP: 0018:ffff88801718fd38 EFLAGS: 00010082
RAX: 0000000000000000 RBX: ffff88806cf37d00 RCX: ffffffff8139de70
No source specified
RDX: ffff8880467fb700 RSI: ffffffff8139de7e RDI: 0000000000000001
RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed100d9e4801
R10: 0000000000000000 R11: 0000000000000001 R12: ffff8880467fb700
R13: 0000000000000000 R14: ffff8880467fb700 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff8880e56dd000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f719b52a5e8 CR3: 000000000d4e2000 CR4: 0000000000350ef0
Call Trace:
__schedule+0x217/0x3590
do_task_dead+0xdc/0x110
make_task_dead+0x373/0x3b0
rewind_stack_and_make_dead+0x16/0x20
RIP: 0033:0x7f421d5c304e
Code: Unable to access opcode bytes at 0x7f421d5c3024.
RSP: 002b:00007ffd9f92fd78 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 0000559e0fe3caf8 RCX: 00007f421d5c304e
RDX: 0000000000000400 RSI: 0000559e0fe3cb08 RDI: 0000000000000010
RBP: 0000559e0f5d6080 R08: 0000559e0fe3cae0 R09: 00007f421d5a9be0
R10: 0000000000000008 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000400 R14: 0000559e0fe3cae0 R15: 0000559e0f5d60d0
irq event stamp: 1868
hardirqs last enabled at (1867): [] ktime_get+0x1c7/0x270
hardirqs last disabled at (1868): [] _raw_spin_lock_irq+0x42/0x50
softirqs last enabled at (1778): [] handle_softirqs+0x50c/0x770
softirqs last disabled at (1743): [] __irq_exit_rcu+0xc4/0x100
---[ end trace 0000000000000000 ]---
kmemleak: Found object by alias at 0x607f1a639124
CPU: 0 UID: 0 PID: 4047 Comm: syz-executor.2 Tainted: G D W 6.17.0-rc3-next-20250829 #1 PREEMPT(voluntary)
Tainted: [D]=DIE, [W]=WARN
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
Call Trace:
dump_stack_lvl+0xca/0x120
__lookup_object+0x94/0xb0
delete_object_full+0x27/0x70
free_percpu+0x30/0x1160
futex_hash_free+0x38/0xc0
mmput+0x2d3/0x390
do_exit+0x79d/0x2970
do_group_exit+0xd3/0x2a0
__x64_sys_exit_group+0x3e/0x50
x64_sys_call+0x18c5/0x18d0
do_syscall_64+0xbf/0x360
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f445b13fb19
Code: Unable to access opcode bytes at 0x7f445b13faef.
RSP: 002b:00007ffe57253be8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 000000000000001e RCX: 00007f445b13fb19
RDX: 00007f445b0f272b RSI: ffffffffffffffbc RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000001
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 0000000000000001 R14: 0000000000000001 R15: 00007ffe57253cd0
kmemleak: Object (percpu) 0x607f1a639120 (size 8):
kmemleak: comm "systemd-udevd", pid 4014, jiffies 4294816757
kmemleak: min_count = 1
kmemleak: count = 0
kmemleak: flags = 0x21
kmemleak: checksum = 0
kmemleak: backtrace:
pcpu_alloc_noprof+0x87a/0x1170
percpu_ref_init+0x37/0x400
blkg_alloc+0xe9/0x7d0
blkg_create+0xe08/0x1420
bio_associate_blkg_from_css+0xe06/0x1380
bio_associate_blkg+0x10e/0x2a0
bio_init+0x2dd/0x570
bio_alloc_bioset+0x2cf/0x8c0
do_mpage_readpage.isra.0+0xc9c/0x15e0
mpage_readahead+0x31e/0x550
read_pages+0x196/0xb10
page_cache_ra_unbounded+0x391/0x6a0
force_page_cache_ra+0x253/0x370
page_cache_sync_ra+0x104/0xaa0
filemap_get_pages+0x354/0x18e0
filemap_read+0x388/0xcf0
Bluetooth: Unexpected continuation frame (len 20)
Bluetooth: hci4: SCO packet for unknown connection handle 0
Bluetooth: Unexpected continuation frame (len 20)
Bluetooth: hci4: link tx timeout
Bluetooth: hci4: killing stalled connection 11:aa:aa:aa:aa:aa
kmemleak: Cannot insert 0x607f1a639124 into the object search tree (overlaps existing)
CPU: 0 UID: 0 PID: 4067 Comm: syz-executor.5 Tainted: G D W 6.17.0-rc3-next-20250829 #1 PREEMPT(voluntary)
Tainted: [D]=DIE, [W]=WARN
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
Call Trace:
dump_stack_lvl+0xca/0x120
__link_object+0x190/0x210
__create_object+0x48/0x80
pcpu_alloc_noprof+0x87a/0x1170
__percpu_counter_init_many+0x44/0x360
msg_init_ns+0xda/0x1a0
copy_ipcs+0x4cb/0x630
create_new_namespaces+0x210/0xab0
copy_namespaces+0x45c/0x580
copy_process+0x2649/0x73c0
kernel_clone+0xea/0x7f0
__do_sys_clone+0xce/0x120
do_syscall_64+0xbf/0x360
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fbf2df9fb19
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 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fbf2b515188 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 00007fbf2e0b2f60 RCX: 00007fbf2df9fb19
RDX: 0000000020000080 RSI: 0000000000000000 RDI: 000000004c01f900
RBP: 00007fbf2dff9f6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc3efd132f R14: 00007fbf2b515300 R15: 0000000000022000
kmemleak: Kernel memory leak detector disabled
kmemleak: Object (percpu) 0x607f1a639120 (size 8):
kmemleak: comm "systemd-udevd", pid 4014, jiffies 4294816757
kmemleak: min_count = 1
kmemleak: count = 0
kmemleak: flags = 0x21
kmemleak: checksum = 0
kmemleak: backtrace:
pcpu_alloc_noprof+0x87a/0x1170
percpu_ref_init+0x37/0x400
blkg_alloc+0xe9/0x7d0
blkg_create+0xe08/0x1420
bio_associate_blkg_from_css+0xe06/0x1380
bio_associate_blkg+0x10e/0x2a0
bio_init+0x2dd/0x570
bio_alloc_bioset+0x2cf/0x8c0
do_mpage_readpage.isra.0+0xc9c/0x15e0
mpage_readahead+0x31e/0x550
read_pages+0x196/0xb10
page_cache_ra_unbounded+0x391/0x6a0
force_page_cache_ra+0x253/0x370
page_cache_sync_ra+0x104/0xaa0
filemap_get_pages+0x354/0x18e0
filemap_read+0x388/0xcf0
kmemleak: Automatic memory scanning thread ended
Bluetooth: Unexpected continuation frame (len 20)
Bluetooth: hci4: SCO packet for unknown connection handle 0
Bluetooth: Unexpected continuation frame (len 20)
Bluetooth: hci4: link tx timeout
Bluetooth: hci4: killing stalled connection 11:aa:aa:aa:aa:aa
Bluetooth: Unexpected continuation frame (len 20)
Bluetooth: hci4: SCO packet for unknown connection handle 0
Bluetooth: Unexpected continuation frame (len 20)
Bluetooth: hci4: link tx timeout
mac80211_hwsim hwsim7 wlan1: entered promiscuous mode
Bluetooth: hci4: killing stalled connection 11:aa:aa:aa:aa:aa
Bluetooth: Unexpected continuation frame (len 20)
Bluetooth: hci4: SCO packet for unknown connection handle 0
Bluetooth: Unexpected continuation frame (len 20)
Bluetooth: hci4: link tx timeout
Bluetooth: hci4: killing stalled connection 11:aa:aa:aa:aa:aa
Bluetooth: Unexpected continuation frame (len 20)
Bluetooth: hci4: SCO packet for unknown connection handle 0
Bluetooth: Unexpected continuation frame (len 20)
Bluetooth: hci4: link tx timeout
Bluetooth: hci4: killing stalled connection 11:aa:aa:aa:aa:aa
mac80211_hwsim hwsim7 wlan1: left promiscuous mode
Bluetooth: hci4: command 0x0406 tx timeout
----------------
Code disassembly (best guess):
0: 48 8b 6d 00 mov 0x0(%rbp),%rbp
4: e8 4f 9e 79 03 callq 0x3799e58
9: 31 ff xor %edi,%edi
b: 41 89 c5 mov %eax,%r13d
e: 89 c6 mov %eax,%esi
10: e8 93 f3 31 00 callq 0x31f3a8
15: 45 85 ed test %r13d,%r13d
18: 0f 85 e1 05 00 00 jne 0x5ff
1e: e8 55 f8 31 00 callq 0x31f878
23: 48 89 e8 mov %rbp,%rax
26: 48 c1 e8 03 shr $0x3,%rax
* 2a: 42 80 3c 20 00 cmpb $0x0,(%rax,%r12,1) <-- trapping instruction
2f: 0f 85 a0 0e 00 00 jne 0xed5
35: 4c 8b 75 00 mov 0x0(%rbp),%r14
39: 48 89 df mov %rbx,%rdi
3c: 4c 89 34 24 mov %r14,(%rsp)