Hello, syzbot found the following issue on: HEAD commit: 83d49ede4b18 Merge branch 'for-next/core' into for-kernelci git tree: git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci console output: https://syzkaller.appspot.com/x/log.txt?x=1719dcf8180000 kernel config: https://syzkaller.appspot.com/x/.config?x=af5c6c699e57bbb3 dashboard link: https://syzkaller.appspot.com/bug?extid=116b65a23bc791ae49a6 compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 userspace arch: arm64 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=16b9ffc8180000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=11ddc734180000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/773990dc198f/disk-83d49ede.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/cf9c558cd3e8/vmlinux-83d49ede.xz kernel image: https://storage.googleapis.com/syzbot-assets/25f87616316c/Image-83d49ede.gz.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+116b65a23bc791ae49a6@xxxxxxxxxxxxxxxxxxxxxxxxx INFO: task syz-executor398:6279 blocked for more than 143 seconds. Tainted: G B 6.8.0-rc5-syzkaller-g83d49ede4b18 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor398 state:D stack:0 pid:6279 tgid:6279 ppid:6193 flags:0x0000000d Call trace: __switch_to+0x314/0x560 arch/arm64/kernel/process.c:556 context_switch kernel/sched/core.c:5400 [inline] __schedule+0x1498/0x24b4 kernel/sched/core.c:6727 __schedule_loop kernel/sched/core.c:6802 [inline] schedule+0xb8/0x19c kernel/sched/core.c:6817 schedule_timeout+0xb8/0x348 kernel/time/timer.c:2159 do_wait_for_common+0x30c/0x468 kernel/sched/completion.c:95 __wait_for_common kernel/sched/completion.c:116 [inline] wait_for_common kernel/sched/completion.c:127 [inline] wait_for_completion+0x48/0x60 kernel/sched/completion.c:148 cec_claim_log_addrs+0x164/0x210 drivers/media/cec/core/cec-adap.c:1606 __cec_s_log_addrs+0x1238/0x18d8 drivers/media/cec/core/cec-adap.c:1920 cec_adap_s_log_addrs drivers/media/cec/core/cec-api.c:184 [inline] cec_ioctl+0x2684/0x37b0 drivers/media/cec/core/cec-api.c:528 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:871 [inline] __se_sys_ioctl fs/ioctl.c:857 [inline] __arm64_sys_ioctl+0x14c/0x1c8 fs/ioctl.c:857 __invoke_syscall arch/arm64/kernel/syscall.c:37 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:51 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:136 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:155 el0_svc+0x54/0x158 arch/arm64/kernel/entry-common.c:678 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:696 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598 INFO: task syz-executor398:6329 blocked for more than 143 seconds. Tainted: G B 6.8.0-rc5-syzkaller-g83d49ede4b18 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor398 state:D stack:0 pid:6329 tgid:6329 ppid:6197 flags:0x0000000d Call trace: __switch_to+0x314/0x560 arch/arm64/kernel/process.c:556 context_switch kernel/sched/core.c:5400 [inline] __schedule+0x1498/0x24b4 kernel/sched/core.c:6727 __schedule_loop kernel/sched/core.c:6802 [inline] schedule+0xb8/0x19c kernel/sched/core.c:6817 schedule_timeout+0xb8/0x348 kernel/time/timer.c:2159 do_wait_for_common+0x30c/0x468 kernel/sched/completion.c:95 __wait_for_common kernel/sched/completion.c:116 [inline] wait_for_common kernel/sched/completion.c:127 [inline] wait_for_completion+0x48/0x60 kernel/sched/completion.c:148 cec_claim_log_addrs+0x164/0x210 drivers/media/cec/core/cec-adap.c:1606 __cec_s_log_addrs+0x1238/0x18d8 drivers/media/cec/core/cec-adap.c:1920 cec_adap_s_log_addrs drivers/media/cec/core/cec-api.c:184 [inline] cec_ioctl+0x2684/0x37b0 drivers/media/cec/core/cec-api.c:528 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:871 [inline] __se_sys_ioctl fs/ioctl.c:857 [inline] __arm64_sys_ioctl+0x14c/0x1c8 fs/ioctl.c:857 __invoke_syscall arch/arm64/kernel/syscall.c:37 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:51 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:136 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:155 el0_svc+0x54/0x158 arch/arm64/kernel/entry-common.c:678 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:696 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598 INFO: task syz-executor398:6367 blocked for more than 143 seconds. Tainted: G B 6.8.0-rc5-syzkaller-g83d49ede4b18 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor398 state:D stack:0 pid:6367 tgid:6367 ppid:6196 flags:0x0000000d Call trace: __switch_to+0x314/0x560 arch/arm64/kernel/process.c:556 context_switch kernel/sched/core.c:5400 [inline] __schedule+0x1498/0x24b4 kernel/sched/core.c:6727 __schedule_loop kernel/sched/core.c:6802 [inline] schedule+0xb8/0x19c kernel/sched/core.c:6817 schedule_timeout+0xb8/0x348 kernel/time/timer.c:2159 do_wait_for_common+0x30c/0x468 kernel/sched/completion.c:95 __wait_for_common kernel/sched/completion.c:116 [inline] wait_for_common kernel/sched/completion.c:127 [inline] wait_for_completion+0x48/0x60 kernel/sched/completion.c:148 cec_claim_log_addrs+0x164/0x210 drivers/media/cec/core/cec-adap.c:1606 __cec_s_log_addrs+0x1238/0x18d8 drivers/media/cec/core/cec-adap.c:1920 cec_adap_s_log_addrs drivers/media/cec/core/cec-api.c:184 [inline] cec_ioctl+0x2684/0x37b0 drivers/media/cec/core/cec-api.c:528 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:871 [inline] __se_sys_ioctl fs/ioctl.c:857 [inline] __arm64_sys_ioctl+0x14c/0x1c8 fs/ioctl.c:857 __invoke_syscall arch/arm64/kernel/syscall.c:37 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:51 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:136 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:155 el0_svc+0x54/0x158 arch/arm64/kernel/entry-common.c:678 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:696 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598 INFO: lockdep is turned off. --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@xxxxxxxxxxxxxxxx. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want syzbot to run the reproducer, reply with: #syz test: git://repo/address.git branch-or-commit-hash If you attach or paste a git patch, syzbot will apply it before testing. If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup
