Hello, syzbot found the following issue on: HEAD commit: 905b00721763 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=117a5b52180000 kernel config: https://syzkaller.appspot.com/x/.config?x=c9378409372fa395 dashboard link: https://syzkaller.appspot.com/bug?extid=57d7c816f3eb3c02ffa9 compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 userspace arch: arm64 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/afc82f43a122/disk-905b0072.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/0b11ab3a34e1/vmlinux-905b0072.xz kernel image: https://storage.googleapis.com/syzbot-assets/eff038048b1b/Image-905b0072.gz.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+57d7c816f3eb3c02ffa9@xxxxxxxxxxxxxxxxxxxxxxxxx ------------[ cut here ]------------ WARNING: CPU: 1 PID: 1133 at drivers/media/cec/core/cec-adap.c:365 cec_data_cancel+0x620/0x7bc drivers/media/cec/core/cec-adap.c:365 Modules linked in: CPU: 1 PID: 1133 Comm: syz-executor.4 Tainted: G B 6.8.0-rc4-syzkaller-g905b00721763 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : cec_data_cancel+0x620/0x7bc drivers/media/cec/core/cec-adap.c:365 lr : cec_data_cancel+0x620/0x7bc drivers/media/cec/core/cec-adap.c:365 sp : ffff800097c87730 x29: ffff800097c87740 x28: ffff0000c86cc810 x27: ffff0000c86cc800 x26: dfff800000000000 x25: 1fffe0001a08c4df x24: 0000000000000000 x23: 0000000000000040 x22: 0000000000000000 x21: ffff0000d04626f8 x20: ffff0000d0462000 x19: ffff0000c86cc800 x18: 1fffe00036804796 x17: ffff80008ec8d000 x16: ffff800080275750 x15: 0000000000000001 x14: 1ffff00012f90ea0 x13: 0000000000000000 x12: 0000000000000000 x11: 0000000000040000 x10: 00000000000008e5 x9 : ffff8000ac1bf000 x8 : 00000000000008e6 x7 : 0000000000000000 x6 : ffff800086e8a5fc x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff800080316bac x2 : ffff0000c86cc800 x1 : 0000000000000000 x0 : 0000000000000000 Call trace: cec_data_cancel+0x620/0x7bc drivers/media/cec/core/cec-adap.c:365 cec_transmit_msg_fh+0xfc0/0x1a74 cec_transmit drivers/media/cec/core/cec-api.c:230 [inline] cec_ioctl+0x239c/0x37b0 drivers/media/cec/core/cec-api.c:534 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 irq event stamp: 0 hardirqs last enabled at (0): [<0000000000000000>] 0x0 hardirqs last disabled at (0): [<ffff8000801b5074>] copy_process+0x1318/0x3478 kernel/fork.c:2441 softirqs last enabled at (0): [<ffff8000801b509c>] copy_process+0x1340/0x3478 kernel/fork.c:2442 softirqs last disabled at (0): [<0000000000000000>] 0x0 ---[ end trace 0000000000000000 ]--- --- 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 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
