audit: type=1400 audit(1756558219.209:10): avc: denied { associate } for pid=4004 comm="syz-executor.4" name="memfd:" dev="tmpfs" ino=1030 scontext=system_u:object_r:unlabeled_t:s0 tcontext=system_u:object_r:tmpfs_t:s0 tclass=filesystem permissive=1 srawcon="system_u:ob"
unregister_netdevice: waiting for lo to become free. Usage count = 29
kmemleak: Found object by alias at 0x607f1a639b9c
CPU: 0 UID: 0 PID: 4037 Comm: syz-executor.5 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: 0033:0x7f80307b8b19
Code: Unable to access opcode bytes at 0x7f80307b8aef.
RSP: 002b:00007f802dd0d188 EFLAGS: 00000246 ORIG_RAX: 00000000000000a2
RAX: 0000000000000000 RBX: 00007f80308cc020 RCX: 00007f80307b8b19
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007f8030812f6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffcfa49020f R14: 00007f802dd0d300 R15: 0000000000022000
kmemleak: Object (percpu) 0x607f1a639b98 (size 8):
kmemleak: comm "syz-executor.5", pid 4023, jiffies 4294813728
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
submit_bh_wbc+0x286/0x720
__block_write_full_folio+0x723/0xde0
block_write_full_folio+0x2d6/0x390
blkdev_writepages+0x96/0x120
do_writepages+0x244/0x5c0
filemap_fdatawrite_wbc+0x10b/0x150
__filemap_fdatawrite_range+0xb9/0x100
sync_bdevs+0x2e6/0x360
loop2: detected capacity change from 0 to 256
vfat: Unknown parameter 'fsmagic'
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
I/O error, dev sr0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2
audit: type=1400 audit(1756558228.214:11): avc: denied { block_suspend } for pid=4071 comm="syz-executor.1" capability=36 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=capability2 permissive=1
kmemleak: Found object by alias at 0x607f1a639b9c
CPU: 0 UID: 0 PID: 4060 Comm: syz-executor.5 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
__x64_sys_exit_group+0x3e/0x50
x64_sys_call+0x18c5/0x18d0
do_syscall_64+0xbf/0x360
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f80307b8b19
Code: Unable to access opcode bytes at 0x7f80307b8aef.
RSP: 002b:00007ffcfa490438 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 000000000000001e RCX: 00007f80307b8b19
RDX: 00007f803076b72b RSI: ffffffffffffffbc RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000001
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 0000000000000001 R14: 0000000000000001 R15: 00007ffcfa490520
kmemleak: Object (percpu) 0x607f1a639b98 (size 8):
kmemleak: comm "syz-executor.4", pid 4052, jiffies 4294822493
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
ioctx_alloc+0x27f/0x1e10
__x64_sys_io_setup+0xc8/0x1f0
do_syscall_64+0xbf/0x360
entry_SYSCALL_64_after_hwframe+0x77/0x7f
loop2: detected capacity change from 0 to 256
vfat: Unknown parameter 'fsmagic'
kmemleak: Found object by alias at 0x607f1a639b9c
CPU: 0 UID: 0 PID: 4096 Comm: syz-executor.5 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
__x64_sys_exit_group+0x3e/0x50
x64_sys_call+0x18c5/0x18d0
do_syscall_64+0xbf/0x360
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f80307b8b19
Code: Unable to access opcode bytes at 0x7f80307b8aef.
RSP: 002b:00007ffcfa490438 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 000000000000001e RCX: 00007f80307b8b19
RDX: 00007f803076b72b RSI: ffffffffffffffbc RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000001b2d42aea0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 0000000000000000 R14: 0000000000000001 R15: 00007ffcfa490520
kmemleak: Object (percpu) 0x607f1a639b98 (size 8):
kmemleak: comm "syz-executor.4", pid 4052, jiffies 4294822493
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
ioctx_alloc+0x27f/0x1e10
__x64_sys_io_setup+0xc8/0x1f0
do_syscall_64+0xbf/0x360
entry_SYSCALL_64_after_hwframe+0x77/0x7f