pim6reg: entered allmulticast mode syz.0.0 uses obsolete (PF_INET,SOCK_PACKET) loop0: detected capacity change from 0 to 32768 ======================================================= WARNING: The mand mount option has been deprecated and and is ignored by this kernel. Remove the mand option from the mount to silence this warning. ======================================================= ERROR: (device loop0): dbAdjCtl: the maximum free buddy is not the old root ERROR: (device loop0): remounting filesystem as read-only ------------[ cut here ]------------ kernel BUG at fs/jfs/inode.c:175! Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI CPU: 0 UID: 0 PID: 5327 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 RIP: 0010:jfs_evict_inode+0x438/0x440 fs/jfs/inode.c:175 Code: fe e9 e0 fd ff ff 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c 23 fe ff ff 4c 89 f7 e8 43 0c d6 fe e9 16 fe ff ff e8 e9 42 69 fe 90 <0f> 0b 66 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 RSP: 0018:ffffc90007a37700 EFLAGS: 00010293 RAX: ffffffff835c87c7 RBX: ffff8880472ab078 RCX: ffff88803b3c2500 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8880472ab078 RBP: 0000000000000001 R08: ffffffff9030ccf7 R09: 1ffffffff206199e R10: dffffc0000000000 R11: ffffffff835c63f0 R12: dffffc0000000000 R13: dffffc0000000000 R14: ffff8880472aad18 R15: ffff8880472ab078 FS: 0000000000000000(0000) GS:ffff88808c885000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f83413ffe00 CR3: 0000000036a78000 CR4: 0000000000352ef0 Call Trace: evict+0x61e/0xb10 fs/inode.c:841 dispose_list fs/inode.c:883 [inline] evict_inodes+0x75a/0x7f0 fs/inode.c:937 generic_shutdown_super+0xaa/0x2d0 fs/super.c:632 kill_block_super+0x44/0x90 fs/super.c:1725 deactivate_locked_super+0xbc/0x130 fs/super.c:476 cleanup_mnt+0x437/0x4d0 fs/namespace.c:1312 task_work_run+0x1d9/0x270 kernel/task_work.c:233 exit_task_work include/linux/task_work.h:40 [inline] do_exit+0x70f/0x22c0 kernel/exit.c:975 do_group_exit+0x21b/0x2d0 kernel/exit.c:1117 get_signal+0x1284/0x1330 kernel/signal.c:3037 arch_do_signal_or_restart+0xbc/0x830 arch/x86/kernel/signal.c:337 __exit_to_user_mode_loop kernel/entry/common.c:64 [inline] exit_to_user_mode_loop+0x86/0x480 kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:238 [inline] syscall_exit_to_user_mode include/linux/entry-common.h:318 [inline] do_syscall_64+0x33e/0xf80 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f834d39cdd9 Code: Unable to access opcode bytes at 0x7f834d39cdaf. RSP: 002b:00007f834e1cafe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: 0000000000b20000 RBX: 00007f834d615fa0 RCX: 00007f834d39cdd9 RDX: 0000000000000000 RSI: 000000000000000b RDI: 000000000000000a RBP: 00007f834d432d69 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000fffe82 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f834d616038 R14: 00007f834d615fa0 R15: 00007ffde06c3088 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:jfs_evict_inode+0x438/0x440 fs/jfs/inode.c:175 Code: fe e9 e0 fd ff ff 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c 23 fe ff ff 4c 89 f7 e8 43 0c d6 fe e9 16 fe ff ff e8 e9 42 69 fe 90 <0f> 0b 66 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 RSP: 0018:ffffc90007a37700 EFLAGS: 00010293 RAX: ffffffff835c87c7 RBX: ffff8880472ab078 RCX: ffff88803b3c2500 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8880472ab078 RBP: 0000000000000001 R08: ffffffff9030ccf7 R09: 1ffffffff206199e R10: dffffc0000000000 R11: ffffffff835c63f0 R12: dffffc0000000000 R13: dffffc0000000000 R14: ffff8880472aad18 R15: ffff8880472ab078 FS: 0000000000000000(0000) GS:ffff88808c885000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055b9c26b8168 CR3: 0000000036a78000 CR4: 0000000000352ef0