EXT4-fs error (device loop1): ext4_orphan_get:1401: comm syz-executor.1: couldn't read orphan inode 17 (err -117) EXT4-fs (loop1): mounted filesystem without journal. Quota mode: writeback. BUG: kernel NULL pointer dereference, address: 0000000000000000 #PF: supervisor instruction fetch in kernel mode #PF: error_code(0x0010) - not-present page PGD 14d550067 P4D 14d550067 PUD 118da0067 PMD 0 Oops: 0010 [#1] PREEMPT SMP KASAN CPU: 0 PID: 9443 Comm: syz-executor.1 Tainted: G W 6.1.75-syzkaller-00022-gcfa154389a65 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 RIP: 0010:0x0 Code: Unable to access opcode bytes at 0xffffffffffffffd6. RSP: 0018:ffffc90004b470d8 EFLAGS: 00010246 RAX: 1ffff92000968ed0 RBX: dffffc0000000000 RCX: 0000000000040000 RDX: ffffc90004779000 RSI: ffffea0005a89f00 RDI: ffff88818936ef00 RBP: ffffc90004b47230 R08: ffffffff81a418a8 R09: fffff94000b513e7 R10: 0000000000000000 R11: dffffc0000000001 R12: ffffc90004b47680 R13: ffffea0005a89f00 R14: ffffc90004b47698 R15: 0000000000000000 FS: 00007f05ac67d6c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffffffffffd6 CR3: 00000001958b6000 CR4: 00000000003506b0 Call Trace: read_pages+0x89c/0xd40 mm/readahead.c:192 page_cache_ra_order+0x7f4/0xb40 mm/readahead.c:560 ondemand_readahead+0x92a/0xef0 mm/readahead.c:695 page_cache_sync_ra+0x3d6/0x450 mm/readahead.c:722 page_cache_sync_readahead include/linux/pagemap.h:1251 [inline] collapse_file mm/khugepaged.c:1874 [inline] hpage_collapse_scan_file+0x19ba/0x46e0 mm/khugepaged.c:2236 madvise_collapse+0x639/0xcf0 mm/khugepaged.c:2691 madvise_vma_behavior mm/madvise.c:1110 [inline] madvise_walk_vmas mm/madvise.c:1284 [inline] do_madvise+0x15c1/0x3de0 mm/madvise.c:1463 __do_sys_madvise mm/madvise.c:1476 [inline] __se_sys_madvise mm/madvise.c:1474 [inline] __x64_sys_madvise+0xa8/0xc0 mm/madvise.c:1474 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f05ab87de69 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 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 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f05ac67d0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000001c RAX: ffffffffffffffda RBX: 00007f05ab9abf80 RCX: 00007f05ab87de69 RDX: 0000000000000019 RSI: 0000000000600003 RDI: 0000000020000000 RBP: 00007f05ab8ca47a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f05ab9abf80 R15: 00007fff7e48abe8 Modules linked in: CR2: 0000000000000000 ---[ end trace 0000000000000000 ]--- RIP: 0010:0x0 Code: Unable to access opcode bytes at 0xffffffffffffffd6. RSP: 0018:ffffc90004b470d8 EFLAGS: 00010246 RAX: 1ffff92000968ed0 RBX: dffffc0000000000 RCX: 0000000000040000 RDX: ffffc90004779000 RSI: ffffea0005a89f00 RDI: ffff88818936ef00 RBP: ffffc90004b47230 R08: ffffffff81a418a8 R09: fffff94000b513e7 R10: 0000000000000000 R11: dffffc0000000001 R12: ffffc90004b47680 R13: ffffea0005a89f00 R14: ffffc90004b47698 R15: 0000000000000000 FS: 00007f05ac67d6c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffffffffffd6 CR3: 00000001958b6000 CR4: 00000000003506b0