ext4 filesystem being mounted at /root/syzkaller-testdir4207470062/syzkaller.HHJ6d1/413/mnt supports timestamps until 2038 (0x7fffffff) ------------[ cut here ]------------ kernel BUG at fs/ext4/ext4.h:3355! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 11570 Comm: syz-executor.4 Not tainted 5.15.94-syzkaller-03204-g5448b2fda85f #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/16/2023 RIP: 0010:ext4_get_group_info fs/ext4/ext4.h:3355 [inline] RIP: 0010:ext4_mb_load_buddy_gfp+0xee5/0xf00 fs/ext4/mballoc.c:1498 Code: b1 11 c8 ff e9 0d f4 ff ff e8 57 d7 86 ff 48 c7 c7 80 78 69 86 4c 89 fe 4c 89 f2 e8 95 4e 94 00 e9 87 f2 ff ff e8 3b d7 86 ff <0f> 0b e8 34 d7 86 ff 0f 0b e8 2d d7 86 ff 0f 0b 66 2e 0f 1f 84 00 RSP: 0018:ffffc90000af7320 EFLAGS: 00010283 RAX: ffffffff81e89a85 RBX: 0000000000000001 RCX: 0000000000040000 RDX: ffffc90004212000 RSI: 00000000000001fc RDI: 00000000000001fd RBP: ffffc90000af73b0 R08: ffffffff81e88cb4 R09: ffffc90000af7460 R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff1102c426e79 R13: ffff8881621373c8 R14: 0000000000000001 R15: ffff888110cb6000 FS: 00007f990797d700(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b31424000 CR3: 000000015c710000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ext4_mb_load_buddy fs/ext4/mballoc.c:1620 [inline] ext4_mballoc_query_range+0xc5/0x7b0 fs/ext4/mballoc.c:6560 ext4_getfsmap_datadev+0x1cc8/0x2950 fs/ext4/fsmap.c:537 ext4_getfsmap+0xcc6/0x1060 fs/ext4/fsmap.c:708 ext4_ioc_getfsmap fs/ext4/ioctl.c:661 [inline] __ext4_ioctl fs/ext4/ioctl.c:863 [inline] ext4_ioctl+0x3463/0x5800 fs/ext4/ioctl.c:1277 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:874 [inline] __se_sys_ioctl+0x114/0x190 fs/ioctl.c:860 __x64_sys_ioctl+0x7b/0x90 fs/ioctl.c:860 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x61/0xcb RIP: 0033:0x7f9908c0a0f9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 90 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f990797d168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f9908d29f80 RCX: 00007f9908c0a0f9 RDX: 0000000020000200 RSI: 00000000c0c0583b RDI: 0000000000000005 RBP: 00007f9908c65ae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc7d12111f R14: 00007f990797d300 R15: 0000000000022000 Modules linked in: ---[ end trace f35c9ae73368a523 ]--- RIP: 0010:ext4_get_group_info fs/ext4/ext4.h:3355 [inline] RIP: 0010:ext4_mb_load_buddy_gfp+0xee5/0xf00 fs/ext4/mballoc.c:1498 Code: b1 11 c8 ff e9 0d f4 ff ff e8 57 d7 86 ff 48 c7 c7 80 78 69 86 4c 89 fe 4c 89 f2 e8 95 4e 94 00 e9 87 f2 ff ff e8 3b d7 86 ff <0f> 0b e8 34 d7 86 ff 0f 0b e8 2d d7 86 ff 0f 0b 66 2e 0f 1f 84 00 RSP: 0018:ffffc90000af7320 EFLAGS: 00010283 RAX: ffffffff81e89a85 RBX: 0000000000000001 RCX: 0000000000040000 RDX: ffffc90004212000 RSI: 00000000000001fc RDI: 00000000000001fd RBP: ffffc90000af73b0 R08: ffffffff81e88cb4 R09: ffffc90000af7460 R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff1102c426e79 R13: ffff8881621373c8 R14: 0000000000000001 R15: ffff888110cb6000 FS: 00007f990797d700(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b31024000 CR3: 000000015c710000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400