[ 26.918550][ T30] audit: type=1400 audit(1753303264.438:67): avc: denied { mounton } for pid=1677 comm="syz-executor" path="/proc/sys/fs/binfmt_misc" dev="binfmt_misc" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:binfmt_misc_fs_t tclass=dir permissive=1
[ 26.943334][ T30] audit: type=1400 audit(1753303264.438:68): avc: denied { mount } for pid=1677 comm="syz-executor" name="/" dev="binfmt_misc" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:binfmt_misc_fs_t tclass=filesystem permissive=1
[ 26.966695][ T30] audit: type=1400 audit(1753303264.438:69): avc: denied { create } for pid=1677 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1
[ 26.987108][ T30] audit: type=1400 audit(1753303264.438:70): avc: denied { write } for pid=1677 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1
[ 27.011103][ T1679] SELinux: Context root:object_r:swapfile_t is not valid (left unmapped).
[ 27.563947][ T1677] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k
[ 27.573450][ T1677] syz-executor (1677) used greatest stack depth: 11056 bytes left
[ 28.757520][ T1685] soft_limit_in_bytes is deprecated and will be removed. Please report your usecase to linux-mm@kvack.org if you depend on this functionality.
[ 39.038355][ T30] kauditd_printk_skb: 15 callbacks suppressed
[ 39.038359][ T30] audit: type=1400 audit(1753303276.558:86): avc: denied { write } for pid=2104 comm="sh" path="pipe:[2055]" dev="pipefs" ino=2055 scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:sshd_t tclass=fifo_file permissive=1
Warning: Permanently added '10.128.10.46' (ED25519) to the list of known hosts.
2025/07/23 20:41:23 ignoring optional flag "sandboxArg"="0"
2025/07/23 20:41:23 ignoring optional flag "type"="gce"
2025/07/23 20:41:23 parsed 1 programs
[ 46.081265][ T30] audit: type=1400 audit(1753303283.598:87): avc: denied { create } for pid=2122 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1
[ 46.101702][ T30] audit: type=1400 audit(1753303283.598:88): avc: denied { write } for pid=2122 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1
[ 46.122220][ T30] audit: type=1400 audit(1753303283.598:89): avc: denied { read } for pid=2122 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1
[ 46.147865][ T30] audit: type=1400 audit(1753303283.668:90): avc: denied { unlink } for pid=2122 comm="syz-executor" name="swap-file" dev="sda1" ino=2027 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=file permissive=1 trawcon="root:object_r:swapfile_t"
2025/07/23 20:41:24 executed programs: 0
[ 46.801534][ T2122] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k
[ 48.005848][ T2543] loop0: detected capacity change from 0 to 64
[ 48.013194][ T30] audit: type=1400 audit(1753303285.528:91): avc: denied { mounton } for pid=2542 comm="syz-executor.0" path="/root/syzkaller-testdir2678190579/syzkaller.ejOnjg/0/bus" dev="sda1" ino=2036 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1
[ 48.041903][ T30] audit: type=1400 audit(1753303285.558:92): avc: denied { mount } for pid=2542 comm="syz-executor.0" name="/" dev="loop0" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:dosfs_t tclass=filesystem permissive=1
2025/07/23 20:41:55 executed programs: 1
[ 78.267700][ T133] kworker/u8:3: attempt to access beyond end of device
[ 78.267700][ T133] loop0: rw=1048577, sector=95, nr_sectors = 1 limit=64
[ 78.281400][ T133] Buffer I/O error on dev loop0, logical block 95, lost async page write
[ 78.289827][ T133] kworker/u8:3: attempt to access beyond end of device
[ 78.289827][ T133] loop0: rw=1048577, sector=96, nr_sectors = 1 limit=64
[ 78.303469][ T133] Buffer I/O error on dev loop0, logical block 96, lost async page write
[ 78.311888][ T133] kworker/u8:3: attempt to access beyond end of device
[ 78.311888][ T133] loop0: rw=1048577, sector=98, nr_sectors = 1 limit=64
[ 78.325500][ T133] Buffer I/O error on dev loop0, logical block 98, lost async page write
[ 78.333929][ T133] kworker/u8:3: attempt to access beyond end of device
[ 78.333929][ T133] loop0: rw=1048577, sector=100, nr_sectors = 1 limit=64
[ 78.347746][ T133] Buffer I/O error on dev loop0, logical block 100, lost async page write
[ 78.356210][ T133] kworker/u8:3: attempt to access beyond end of device
[ 78.356210][ T133] loop0: rw=1048577, sector=101, nr_sectors = 1 limit=64
[ 78.369913][ T133] Buffer I/O error on dev loop0, logical block 101, lost async page write
[ 78.378411][ T133] kworker/u8:3: attempt to access beyond end of device
[ 78.378411][ T133] loop0: rw=1048577, sector=102, nr_sectors = 1 limit=64
[ 78.392113][ T133] Buffer I/O error on dev loop0, logical block 102, lost async page write
[ 78.400699][ T133] kworker/u8:3: attempt to access beyond end of device
[ 78.400699][ T133] loop0: rw=1048577, sector=103, nr_sectors = 1 limit=64
[ 78.414425][ T133] Buffer I/O error on dev loop0, logical block 103, lost async page write
[ 78.422941][ T133] kworker/u8:3: attempt to access beyond end of device
[ 78.422941][ T133] loop0: rw=1048577, sector=104, nr_sectors = 1 limit=64
[ 78.436726][ T133] Buffer I/O error on dev loop0, logical block 104, lost async page write
[ 78.445591][ T133] kworker/u8:3: attempt to access beyond end of device
[ 78.445591][ T133] loop0: rw=1048577, sector=105, nr_sectors = 2048 limit=64
[ 78.460016][ T133] kworker/u8:3: attempt to access beyond end of device
[ 78.460016][ T133] loop0: rw=1048577, sector=2153, nr_sectors = 2016 limit=64
2025/07/23 20:42:00 executed programs: 54
2025/07/23 20:42:05 executed programs: 149
2025/07/23 20:42:10 executed programs: 244
2025/07/23 20:42:15 executed programs: 340
2025/07/23 20:42:20 executed programs: 436
2025/07/23 20:42:25 executed programs: 532
2025/07/23 20:42:30 executed programs: 628
2025/07/23 20:42:35 executed programs: 724
2025/07/23 20:42:40 executed programs: 820
2025/07/23 20:42:45 executed programs: 916
2025/07/23 20:42:50 executed programs: 1012
2025/07/23 20:42:55 executed programs: 1108
2025/07/23 20:43:00 executed programs: 1203
2025/07/23 20:43:05 executed programs: 1299
2025/07/23 20:43:10 executed programs: 1395
2025/07/23 20:43:16 executed programs: 1491
2025/07/23 20:43:21 executed programs: 1587
2025/07/23 20:43:26 executed programs: 1683
2025/07/23 20:43:31 executed programs: 1779
2025/07/23 20:43:36 executed programs: 1875
2025/07/23 20:43:41 executed programs: 1971
2025/07/23 20:43:46 executed programs: 2066
2025/07/23 20:43:51 executed programs: 2162
2025/07/23 20:43:56 executed programs: 2258
2025/07/23 20:44:01 executed programs: 2354
2025/07/23 20:44:06 executed programs: 2449
[ 210.347407][ T31] INFO: task syz-executor.0:2543 blocked for more than 143 seconds.
[ 210.355437][ T31] Not tainted 6.16.0-rc7-syzkaller #0
[ 210.361338][ T31] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 210.370092][ T31] task:syz-executor.0 state:D stack:13376 pid:2543 tgid:2542 ppid:2127 task_flags:0x400140 flags:0x00004006
[ 210.382003][ T31] Call Trace:
[ 210.385258][ T31]
[ 210.388172][ T31] __schedule+0x594/0xd20
[ 210.392493][ T31] schedule+0x25/0x110
[ 210.396530][ T31] schedule_preempt_disabled+0x13/0x30
[ 210.401983][ T31] __mutex_lock+0x617/0xb10
[ 210.406471][ T31] ? hfs_find_init+0x7e/0xa0
[ 210.411064][ T31] ? hfs_find_init+0x7e/0xa0
[ 210.415629][ T31] hfs_find_init+0x7e/0xa0
[ 210.420040][ T31] hfs_ext_read_extent+0x5c/0x1a0
[ 210.425042][ T31] hfs_extend_file+0x17f/0x280
[ 210.429798][ T31] hfs_bmap_reserve+0x74/0x90
[ 210.434472][ T31] __hfs_ext_write_extent+0x8d/0xb0
[ 210.440203][ T31] hfs_ext_read_extent+0x160/0x1a0
[ 210.445292][ T31] hfs_extend_file+0x17f/0x280
[ 210.450061][ T31] hfs_get_block+0x65/0x1d0
[ 210.454542][ T31] __block_write_begin_int+0x173/0x520
[ 210.460001][ T31] ? __pfx_hfs_get_block+0x10/0x10
[ 210.465098][ T31] ? __pfx_hfs_get_block+0x10/0x10
[ 210.470217][ T31] block_write_begin+0x4d/0xb0
[ 210.474956][ T31] hfs_write_begin+0x28/0x70
[ 210.479547][ T31] ? __pfx_hfs_get_block+0x10/0x10
[ 210.484630][ T31] generic_perform_write+0x163/0x300
[ 210.489916][ T31] generic_file_write_iter+0x5d/0xe0
[ 210.495176][ T31] vfs_write+0x2b1/0x4b0
[ 210.499432][ T31] ksys_write+0x6e/0xf0
[ 210.503562][ T31] do_syscall_64+0x6d/0x2d0
[ 210.508065][ T31] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 210.513956][ T31] RIP: 0033:0x7fe777a7cda9
[ 210.518378][ T31] RSP: 002b:00007fe7788d20c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 210.526796][ T31] RAX: ffffffffffffffda RBX: 00007fe777babf80 RCX: 00007fe777a7cda9
[ 210.534778][ T31] RDX: 000000000208e24b RSI: 0000000020000180 RDI: 0000000000000004
[ 210.542744][ T31] RBP: 00007fe777ac947a R08: 0000000000000000 R09: 0000000000000000
[ 210.550714][ T31] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 210.558684][ T31] R13: 0000000000000006 R14: 00007fe777babf80 R15: 00007ffd99ac9fc8
[ 210.566649][ T31]
[ 210.569700][ T31]
[ 210.569700][ T31] Showing all locks held in the system:
[ 210.577440][ T31] 1 lock held by khungtaskd/31:
[ 210.582273][ T31] #0: ffffffff837e4780 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x36/0x120
[ 210.592084][ T31] 4 locks held by kworker/u8:3/133:
[ 210.597254][ T31] #0: ffff888101ebc548 ((wq_completion)writeback){....}-{0:0}, at: process_one_work+0x42f/0x660
[ 210.607848][ T31] #1: ffffc90000e77e38 ((work_completion)(&(&wb->dwork)->work)){....}-{0:0}, at: process_one_work+0x1ed/0x660
[ 210.619567][ T31] #2: ffff888107ef60e0 (&type->s_umount_key#62){....}-{3:3}, at: super_trylock_shared+0x15/0x50
[ 210.630068][ T31] #3: ffff888102b400b0 (&tree->tree_lock/1){....}-{3:3}, at: hfs_find_init+0x7e/0xa0
[ 210.639613][ T31] 2 locks held by getty/1583:
[ 210.644259][ T31] #0: ffff8881027d38a0 (&tty->ldisc_sem){....}-{0:0}, at: tty_ldisc_ref_wait+0x23/0x60
[ 210.653975][ T31] #1: ffffc90002f1b2f0 (&ldata->atomic_read_lock){....}-{3:3}, at: n_tty_read+0x17a/0x660
[ 210.663972][ T31] 7 locks held by syz-executor.0/2543:
[ 210.669904][ T31] #0: ffff888101bc5bf8 (&f->f_pos_lock){....}-{3:3}, at: fdget_pos+0x89/0x180
[ 210.678938][ T31] #1: ffff888107ef6418 (sb_writers#13){....}-{0:0}, at: ksys_write+0x6e/0xf0
[ 210.687790][ T31] #2: ffff88810e3882a0 (&sb->s_type->i_mutex_key#19){....}-{3:3}, at: generic_file_write_iter+0x29/0xe0
[ 210.699013][ T31] #3: ffff88810e3880f8 (&HFS_I(inode)->extents_lock){....}-{3:3}, at: hfs_extend_file+0x3f/0x280
[ 210.709606][ T31] #4: ffff888102b400b0 (&tree->tree_lock/1){....}-{3:3}, at: hfs_find_init+0x7e/0xa0
[ 210.719165][ T31] #5: ffff8881087180f8 (&HFS_I(tree->inode)->extents_lock){....}-{3:3}, at: hfs_extend_file+0x3f/0x280
[ 210.730285][ T31] #6: ffff888102b400b0 (&tree->tree_lock/1){....}-{3:3}, at: hfs_find_init+0x7e/0xa0
[ 210.739822][ T31] 2 locks held by syz-executor.0/2545:
[ 210.745332][ T31]
[ 210.747647][ T31] =============================================
[ 210.747647][ T31]
[ 210.756034][ T31] NMI backtrace for cpu 1
[ 210.756043][ T31] CPU: 1 UID: 0 PID: 31 Comm: khungtaskd Not tainted 6.16.0-rc7-syzkaller #0 PREEMPT(none)
[ 210.756047][ T31] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[ 210.756049][ T31] Call Trace:
[ 210.756051][ T31]
[ 210.756053][ T31] dump_stack_lvl+0x5a/0x90
[ 210.756061][ T31] nmi_cpu_backtrace+0xd4/0x110
[ 210.756067][ T31] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10
[ 210.756071][ T31] nmi_trigger_cpumask_backtrace+0xd5/0x140
[ 210.756076][ T31] watchdog+0x652/0x690
[ 210.756079][ T31] ? watchdog+0x1f5/0x690
[ 210.756082][ T31] ? __pfx_watchdog+0x10/0x10
[ 210.756084][ T31] kthread+0x107/0x200
[ 210.756089][ T31] ? __pfx_kthread+0x10/0x10
[ 210.756092][ T31] ret_from_fork+0x16f/0x190
[ 210.756097][ T31] ? __pfx_kthread+0x10/0x10
[ 210.756100][ T31] ret_from_fork_asm+0x1a/0x30
[ 210.756107][ T31]
[ 210.756108][ T31] Sending NMI from CPU 1 to CPUs 0:
[ 210.851712][ C0] NMI backtrace for cpu 0
[ 210.851716][ C0] CPU: 0 UID: 0 PID: 2545 Comm: syz-executor.0 Not tainted 6.16.0-rc7-syzkaller #0 PREEMPT(none)
[ 210.851719][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[ 210.851721][ C0] RIP: 0010:unwind_next_frame+0x120/0x960
[ 210.851726][ C0] Code: d6 48 8d 34 76 48 8d b4 36 00 ac d9 83 48 81 fe e2 eb 1d 84 0f 87 4b 02 00 00 29 ca 48 8d 3c 85 14 2c ac 83 48 89 e9 4c 89 c6 5b fb ff ff 48 89 c5 48 85 ed 0f 85 d2 00 00 00 c6 43 34 01 48
[ 210.851729][ C0] RSP: 0018:ffffc90001d178e0 EFLAGS: 00000212
[ 210.851731][ C0] RAX: 000000000001c194 RBX: ffffc90001d17918 RCX: ffffffff8156ee49
[ 210.851733][ C0] RDX: 000000000000000d RSI: ffffffff83e43578 RDI: ffffffff83b33264
[ 210.851735][ C0] RBP: ffffffff8156ee49 R08: ffffffff83e43578 R09: ffff8881013f8a48
[ 210.851736][ C0] R10: 0000000000018cd3 R11: 000000002eed0729 R12: ffffffff8156ee4a
[ 210.851737][ C0] R13: ffffc90001d17f18 R14: 0000000000000001 R15: ffff8881013f8000
[ 210.851742][ C0] FS: 000055556bddd480(0000) GS:ffff8882b3645000(0000) knlGS:0000000000000000
[ 210.851744][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 210.851745][ C0] CR2: 00007ffd5183df48 CR3: 0000000106f65000 CR4: 00000000003506f0
[ 210.851746][ C0] Call Trace:
[ 210.851748][ C0]
[ 210.851749][ C0] ? __pfx_stack_trace_consume_entry+0x10/0x10
[ 210.851753][ C0] arch_stack_walk+0x94/0xf0
[ 210.851758][ C0] ? __x64_sys_unlink+0x3a/0x70
[ 210.851763][ C0] stack_trace_save+0x48/0x70
[ 210.851765][ C0] save_stack+0x84/0xb0
[ 210.851769][ C0] ? free_unref_folios+0x5b9/0xa10
[ 210.851771][ C0] ? folios_put_refs+0x17a/0x1f0
[ 210.851774][ C0] ? truncate_inode_pages_range+0x15b/0x520
[ 210.851777][ C0] ? ext4_evict_inode+0xff/0x770
[ 210.851781][ C0] ? evict+0x119/0x2a0
[ 210.851784][ C0] ? do_unlinkat+0x29e/0x2f0
[ 210.851787][ C0] ? __x64_sys_unlink+0x3a/0x70
[ 210.851790][ C0] __reset_page_owner+0x57/0x1b0
[ 210.851792][ C0] free_unref_folios+0x5b9/0xa10
[ 210.851794][ C0] ? __mem_cgroup_uncharge_folios+0x78/0xa0
[ 210.851799][ C0] folios_put_refs+0x17a/0x1f0
[ 210.851801][ C0] truncate_inode_pages_range+0x15b/0x520
[ 210.851808][ C0] ext4_evict_inode+0xff/0x770
[ 210.851811][ C0] evict+0x119/0x2a0
[ 210.851815][ C0] do_unlinkat+0x29e/0x2f0
[ 210.851818][ C0] __x64_sys_unlink+0x3a/0x70
[ 210.851821][ C0] do_syscall_64+0x6d/0x2d0
[ 210.851825][ C0] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 210.851828][ C0] RIP: 0033:0x7f8f1b07c557
[ 210.851830][ C0] Code: 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 57 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
[ 210.851832][ C0] RSP: 002b:00007ffd5183e6f8 EFLAGS: 00000206 ORIG_RAX: 0000000000000057
[ 210.851834][ C0] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f8f1b07c557
[ 210.851835][ C0] RDX: 00007ffd5183e720 RSI: 00007ffd5183e7b0 RDI: 00007ffd5183e7b0
[ 210.851836][ C0] RBP: 00007ffd5183e7b0 R08: 0000000000000000 R09: 0000000000000000
[ 210.851838][ C0] R10: 0000000000000100 R11: 0000000000000206 R12: 00007ffd5183f870
[ 210.851839][ C0] R13: 00007f8f1b0c83b9 R14: 000000000003373d R15: 0000000000000003
[ 210.851841][ C0]
[ 210.852707][ T31] Kernel panic - not syncing: hung_task: blocked tasks
[ 211.173738][ T31] Kernel Offset: disabled
[ 211.178024][ T31] Rebooting in 86400 seconds..