INFO: task syz.3.687:8704 blocked for more than 143 seconds.
Not tainted 6.15.0-rc6-syzkaller-00025-g627277ba7c23 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.687 state:D stack:26936 pid:8704 tgid:8703 ppid:5836 task_flags:0x400740 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5382 [inline]
__schedule+0x116f/0x5de0 kernel/sched/core.c:6767
__schedule_loop kernel/sched/core.c:6845 [inline]
schedule+0xe7/0x3a0 kernel/sched/core.c:6860
schedule_timeout+0x257/0x290 kernel/time/sleep_timeout.c:75
do_wait_for_common kernel/sched/completion.c:95 [inline]
__wait_for_common+0x2fc/0x4e0 kernel/sched/completion.c:116
wait_for_common kernel/sched/completion.c:127 [inline]
wait_for_completion_state+0x1c/0x40 kernel/sched/completion.c:264
coredump_wait fs/coredump.c:419 [inline]
do_coredump+0x887/0x4480 fs/coredump.c:576
get_signal+0x22e3/0x26d0 kernel/signal.c:3019
arch_do_signal_or_restart+0x8f/0x7a0 arch/x86/kernel/signal.c:337
exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
syscall_exit_to_user_mode+0x150/0x2a0 kernel/entry/common.c:218
do_syscall_64+0xda/0x230 arch/x86/entry/syscall_64.c:100
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f932678e969
RSP: 002b:00007f93245f60e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 00007f93269b5fa8 RCX: 00007f932678e969
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f93269b5fac
RBP: 00007f93269b5fa0 R08: 00007f93274f4000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f93269b5fac
R13: 0000000000000000 R14: 00007fff48bce6b0 R15: 00007fff48bce798
Showing all locks held in the system:
1 lock held by khungtaskd/31:
#0: ffffffff8e3bfa80 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:331 [inline]
#0: ffffffff8e3bfa80 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:841 [inline]
#0: ffffffff8e3bfa80 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x36/0x1c0 kernel/locking/lockdep.c:6764
6 locks held by kworker/u8:3/52:
2 locks held by udevd/5202:
1 lock held by syz-executor/8306:
1 lock held by syz.3.687/8710:
2 locks held by getty/10187:
#0: ffff88814de720a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x24/0x80 drivers/tty/tty_ldisc.c:243
#1: ffffc900046752f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x41b/0x14f0 drivers/tty/n_tty.c:2222
=============================================
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 31 Comm: khungtaskd Not tainted 6.15.0-rc6-syzkaller-00025-g627277ba7c23 #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
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:158 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:274 [inline]
watchdog+0xf70/0x12c0 kernel/hung_task.c:437
kthread+0x3c5/0x780 kernel/kthread.c:464
ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:153
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 8710 Comm: syz.3.687 Not tainted 6.15.0-rc6-syzkaller-00025-g627277ba7c23 #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:sha256_transform_rorx+0xfbe/0x1120 arch/x86/crypto/sha256-avx2-asm.S:655
Code: 7b f0 e1 0d 41 31 c7 c4 63 7b f0 f1 16 89 ce 45 31 e6 c4 63 7b f0 e1 02 03 5c 3c 38 09 d6 45 31 e6 41 89 cc 44 21 c6 41 21 d4 <45> 01 ef 41 01 d9 44 09 e6 44 01 f3 45 01 f9 44 01 fb 45 89 d7 c4
RSP: 0018:ffffc90003c371c0 EFLAGS: 00000282
RAX: 00000000aa98fe6c RBX: 0000000027d18dc7 RCX: 00000000cc0d4a4a
RDX: 000000009d22a565 RSI: 00000000112be764 RDI: 0000000000000000
RBP: ffffc90003c373e0 R08: 00000000333bf7e4 R09: 000000000afc7089
R10: 000000008d1de873 R11: 00000000e8a55190 R12: 000000008c000040
R13: 000000004eb1edda R14: 00000000d47c19c8 R15: 00000000aa85561c
FS: 00007f93245d56c0(0000) GS:ffff888124aea000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f9f2217d2d8 CR3: 000000007df04000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
lib_sha256_base_do_update.isra.0+0x130/0x150 include/crypto/sha256_base.h:63
sha256_base_do_update include/crypto/sha256_base.h:81 [inline]
_sha256_update arch/x86/crypto/sha256_ssse3_glue.c:74 [inline]
_sha256_update+0xbe/0xf0 arch/x86/crypto/sha256_ssse3_glue.c:58
ima_calc_file_hash_tfm+0x300/0x3d0 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+0x897/0xa40 security/integrity/ima/ima_api.c:293
process_measurement+0x11fa/0x23e0 security/integrity/ima/ima_main.c:385
ima_file_mmap+0x1b1/0x1d0 security/integrity/ima/ima_main.c:475
security_mmap_file+0x88c/0x990 security/security.c:2982
vm_mmap_pgoff+0xec/0x450 mm/util.c:573
ksys_mmap_pgoff+0x1c8/0x5c0 mm/mmap.c:607
__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/0x230 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f932678e969
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:00007f93245d5038 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 00007f93269b6080 RCX: 00007f932678e969
RDX: 00004000000000df RSI: 0000800000000004 RDI: 0000000000000000
RBP: 00007f9326810ab1 R08: 0000000000000004 R09: 0000300000000000
R10: 0000000000040ebe R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f93269b6080 R15: 00007fff48bce798