INFO: task syz.0.15:6607 blocked for more than 143 seconds.
Not tainted 6.17.0-rc1-syzkaller-g8f5ae30d69d7 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.0.15 state:D stack:28392 pid:6607 tgid:6605 ppid:6503 task_flags:0x400640 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5357 [inline]
__schedule+0x1190/0x5de0 kernel/sched/core.c:6961
__schedule_loop kernel/sched/core.c:7043 [inline]
schedule+0xe7/0x3a0 kernel/sched/core.c:7058
schedule_timeout+0x257/0x290 kernel/time/sleep_timeout.c:75
do_wait_for_common kernel/sched/completion.c:100 [inline]
__wait_for_common+0x2fc/0x4e0 kernel/sched/completion.c:121
wait_for_common kernel/sched/completion.c:132 [inline]
wait_for_completion_state+0x1c/0x40 kernel/sched/completion.c:269
coredump_wait fs/coredump.c:534 [inline]
vfs_coredump+0x981/0x56d0 fs/coredump.c:1129
get_signal+0x22e3/0x26d0 kernel/signal.c:3019
arch_do_signal_or_restart+0x8f/0x790 arch/x86/kernel/signal.c:337
exit_to_user_mode_loop+0x84/0x110 kernel/entry/common.c:40
exit_to_user_mode_prepare include/linux/irq-entry-common.h:225 [inline]
syscall_exit_to_user_mode_work include/linux/entry-common.h:175 [inline]
syscall_exit_to_user_mode include/linux/entry-common.h:210 [inline]
do_syscall_64+0x3f6/0x490 arch/x86/entry/syscall_64.c:100
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fe7de77e719
RSP: 002b:00007fe7df5660e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 00007fe7de936060 RCX: 00007fe7de77e719
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fe7de936064
RBP: 00007fe7de936058 R08: 00007fe7df588000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fe7de936064
R13: 0000000000000000 R14: 00007ffd9d3dba70 R15: 00007ffd9d3dbb58
Showing all locks held in the system:
1 lock held by khungtaskd/31:
#0: ffffffff8e5c1060 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:331 [inline]
#0: ffffffff8e5c1060 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:841 [inline]
#0: ffffffff8e5c1060 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x36/0x1c0 kernel/locking/lockdep.c:6775
2 locks held by getty/5625:
#0: ffff88814d9cd0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x24/0x80 drivers/tty/tty_ldisc.c:243
#1: ffffc900036be2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x41b/0x14f0 drivers/tty/n_tty.c:2222
1 lock held by syz.0.15/6606:
1 lock held by syz.1.16/6794:
1 lock held by syz.2.17/6817:
1 lock held by syz.3.18/6846:
1 lock held by syz.4.19/6876:
1 lock held by syz.5.20/6906:
1 lock held by syz.6.21/6944:
1 lock held by syz.7.22/6977:
=============================================
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 31 Comm: khungtaskd Not tainted 6.17.0-rc1-syzkaller-g8f5ae30d69d7 #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
Call Trace:
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120
nmi_cpu_backtrace+0x27b/0x390 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x29c/0x300 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:328 [inline]
watchdog+0xf0e/0x1260 kernel/hung_task.c:491
kthread+0x3c5/0x780 kernel/kthread.c:463
ret_from_fork+0x5d4/0x6f0 arch/x86/kernel/process.c:148
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 6906 Comm: syz.5.20 Not tainted 6.17.0-rc1-syzkaller-g8f5ae30d69d7 #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:sha256_transform_rorx+0x738/0x1110 lib/crypto/x86/sha256-avx2-asm.S:605
Code: 02 c4 42 25 00 dc c5 a5 fe f0 45 31 e6 45 89 cc 45 21 dc 44 09 e6 44 01 f2 44 01 fa 01 f2 48 8d 35 ed d5 0f 09 c5 45 fe 0c 3e 7d 7f 4c 3c 60 89 d6 c4 63 7b f0 e8 19 c4 63 7b f0 f0 0b 44 03
RSP: 0018:ffffc9000417f120 EFLAGS: 00000213
RAX: 000000008120087f RBX: 000000002fbcaad6 RCX: 000000005ae25eb7
RDX: 00000000179574d3 RSI: ffffffff8df48820 RDI: 0000000000000080
RBP: ffffc9000417f348 R08: 0000000063cef90d R09: 000000005dba6cb1
R10: 000000002edaa8dc R11: 00000000fd48d325 R12: 000000005d084021
R13: 00000000dc2e6e29 R14: 00000000db56b389 R15: 000000002710c9c8
FS: 00007f25302226c0(0000) GS:ffff8881246c6000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000005 CR3: 000000007be3c000 CR4: 00000000003526f0
Call Trace:
sha256_blocks_avx2+0x49/0x80 lib/crypto/x86/sha256.h:30
sha256_blocks lib/crypto/x86/sha256.h:36 [inline]
__sha256_update+0x123/0x140 lib/crypto/sha256.c:200
crypto_sha256_update+0x23/0x30 crypto/sha256.c:119
crypto_shash_finup+0x360/0x6d0 crypto/shash.c:123
crypto_shash_update include/crypto/hash.h:994 [inline]
ima_calc_file_hash_tfm+0x297/0x350 security/integrity/ima/ima_crypto.c:491
ima_calc_file_shash security/integrity/ima/ima_crypto.c:511 [inline]
ima_calc_file_hash+0x1ba/0x490 security/integrity/ima/ima_crypto.c:568
ima_collect_measurement+0x899/0xa40 security/integrity/ima/ima_api.c:293
process_measurement+0x11fa/0x23e0 security/integrity/ima/ima_main.c:405
ima_file_mmap+0x1b1/0x1d0 security/integrity/ima/ima_main.c:495
security_mmap_file+0x88c/0x990 security/security.c:3012
vm_mmap_pgoff+0xec/0x470 mm/util.c:574
ksys_mmap_pgoff+0x1c8/0x5c0 mm/mmap.c:604
__do_sys_mmap arch/x86/kernel/sys_x86_64.c:89 [inline]
__se_sys_mmap arch/x86/kernel/sys_x86_64.c:82 [inline]
__x64_sys_mmap+0x125/0x190 arch/x86/kernel/sys_x86_64.c:82
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xcd/0x490 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f252f37e719
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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f2530222038 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 00007f252f535f80 RCX: 00007f252f37e719
RDX: 00004000000000df RSI: 0008000000000001 RDI: 0000000000000000
RBP: 00007f252f3f132e R08: 0000000000000401 R09: 0000300000000000
R10: 0000000000040eb1 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007f252f535f80 R15: 00007fffc380f948