ci2 starts bisection 2023-05-01 14:11:33.180273939 +0000 UTC m=+253747.200645152 bisecting fixing commit since c957cbb8731536ddc9a01e4c1cd51eab6558aa14 building syzkaller on f325deb023e4e2fb9197004be1b3da738680429c ensuring issue is reproducible on original commit c957cbb8731536ddc9a01e4c1cd51eab6558aa14 testing commit c957cbb8731536ddc9a01e4c1cd51eab6558aa14 gcc compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: d23292c5d7e84fd966c3fc2f9fd9f2efd53616c8aa7311743868781bd0fe9c5e run #0: crashed: KASAN: stack-out-of-bounds Write in end_buffer_read_sync run #1: crashed: BUG: unable to handle kernel NULL pointer dereference in hdr_find_e run #2: crashed: BUG: unable to handle kernel NULL pointer dereference in hdr_find_e run #3: crashed: BUG: unable to handle kernel NULL pointer dereference in hdr_find_e run #4: crashed: BUG: unable to handle kernel NULL pointer dereference in hdr_find_e run #5: crashed: BUG: unable to handle kernel NULL pointer dereference in hdr_find_e run #6: crashed: BUG: unable to handle kernel NULL pointer dereference in hdr_find_e run #7: crashed: BUG: unable to handle kernel NULL pointer dereference in hdr_find_e run #8: crashed: BUG: unable to handle kernel NULL pointer dereference in hdr_find_e run #9: crashed: BUG: unable to handle kernel NULL pointer dereference in hdr_find_e run #10: crashed: BUG: unable to handle kernel NULL pointer dereference in hdr_find_e run #11: crashed: BUG: unable to handle kernel NULL pointer dereference in hdr_find_e run #12: crashed: BUG: unable to handle kernel NULL pointer dereference in hdr_find_e run #13: crashed: BUG: unable to handle kernel NULL pointer dereference in hdr_find_e run #14: crashed: BUG: unable to handle kernel NULL pointer dereference in hdr_find_e run #15: crashed: BUG: unable to handle kernel NULL pointer dereference in hdr_find_e run #16: crashed: BUG: unable to handle kernel NULL pointer dereference in hdr_find_e run #17: crashed: BUG: unable to handle kernel NULL pointer dereference in hdr_find_e run #18: crashed: BUG: unable to handle kernel NULL pointer dereference in hdr_find_e run #19: crashed: BUG: unable to handle kernel NULL pointer dereference in hdr_find_e testing current HEAD 8a7f2a5c5aa1648edb4f2029c6ec33870afb7a95 testing commit 8a7f2a5c5aa1648edb4f2029c6ec33870afb7a95 gcc compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: dfc5ce5b9f8a9fe92123e014eac29db48633e4677f24603843a33ef7773582fd all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in hdr_find_e revisions tested: 2, total time: 33m26.463082601s (build: 25m53.959870463s, test: 6m58.195040899s) the crash still happens on HEAD commit msg: Linux 5.15.110 crash: BUG: unable to handle kernel NULL pointer dereference in hdr_find_e loop0: detected capacity change from 0 to 4096 BUG: kernel NULL pointer dereference, address: 0000000000000000 #PF: supervisor instruction fetch in kernel mode #PF: error_code(0x0010) - not-present page PGD 153fd067 P4D 153fd067 PUD 6eaae067 PMD 0 Oops: 0010 [#1] PREEMPT SMP KASAN CPU: 0 PID: 4281 Comm: syz-executor.0 Not tainted 5.15.110-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023 RIP: 0010:0x0 Code: Unable to access opcode bytes at RIP 0xffffffffffffffd6. RSP: 0018:ffffc900012ef558 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: ffff888073edd278 RSI: 0000000000000000 RDI: ffffffff89b9c8c0 RBP: ffffc900012ef790 R08: ffff88806dffa000 R09: 0000000000000000 R10: 0000000000000003 R11: 0000000000000008 R12: 0000000000000000 R13: 0000000000000003 R14: ffff888073edd268 R15: 0000000000000000 FS: 00007fd56f839700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffffffffffd6 CR3: 000000001cc34000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: hdr_find_e+0x360/0x610 fs/ntfs3/index.c:708 indx_find+0x314/0x9e0 fs/ntfs3/index.c:1077 dir_search_u+0x1b4/0x330 fs/ntfs3/dir.c:254 ntfs_extend_init+0x172/0x4f0 fs/ntfs3/fsntfs.c:214 ntfs_fill_super+0x384a/0x3d70 fs/ntfs3/super.c:1238 get_tree_bdev+0x3d3/0x620 fs/super.c:1303 vfs_get_tree+0x7b/0x220 fs/super.c:1508 do_new_mount+0x1e1/0x930 fs/namespace.c:2994 do_mount fs/namespace.c:3337 [inline] __do_sys_mount fs/namespace.c:3545 [inline] __se_sys_mount+0x22e/0x2c0 fs/namespace.c:3522 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: 0033:0x7fd5704c862a Code: 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d2 e8 b8 04 00 00 0f 1f 84 00 00 00 00 00 49 89 ca b8 a5 00 00 00 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:00007fd56f838f88 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 000000000001f6de RCX: 00007fd5704c862a RDX: 000000002001f700 RSI: 0000000020000180 RDI: 00007fd56f838fe0 RBP: 00007fd56f839020 R08: 00007fd56f839020 R09: 0000000000000013 R10: 0000000000000013 R11: 0000000000000246 R12: 000000002001f700 R13: 0000000020000180 R14: 00007fd56f838fe0 R15: 0000000020000140 Modules linked in: CR2: 0000000000000000 ---[ end trace 2ced1f42d0955195 ]--- RIP: 0010:0x0 Code: Unable to access opcode bytes at RIP 0xffffffffffffffd6. RSP: 0018:ffffc900012ef558 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: ffff888073edd278 RSI: 0000000000000000 RDI: ffffffff89b9c8c0 RBP: ffffc900012ef790 R08: ffff88806dffa000 R09: 0000000000000000 R10: 0000000000000003 R11: 0000000000000008 R12: 0000000000000000 R13: 0000000000000003 R14: ffff888073edd268 R15: 0000000000000000 FS: 00007fd56f839700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffffffffffd6 CR3: 000000001cc34000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400