ci2 starts bisection 2023-06-15 09:00:01.062690399 +0000 UTC m=+43892.583887114 bisecting fixing commit since c957cbb8731536ddc9a01e4c1cd51eab6558aa14 building syzkaller on f325deb023e4e2fb9197004be1b3da738680429c ensuring issue is reproducible on original commit c957cbb8731536ddc9a01e4c1cd51eab6558aa14 testing commit c957cbb8731536ddc9a01e4c1cd51eab6558aa14 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 53b8f33a4419ad8f07481963ab8a83da46c57fc9e4e8091421aef642c7e0bc01 run #0: crashed: BUG: unable to handle kernel NULL pointer dereference in hdr_find_e 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: KASAN: stack-out-of-bounds Write in end_buffer_read_sync 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 471e639e59d128f4bf58000a118b2ceca3893f98 testing commit 471e639e59d128f4bf58000a118b2ceca3893f98 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 277273b4d5592fc69abda12e942d2bd70556faa5de25084508dfb3a62e05d217 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in hdr_find_e crash still not fixed/happens on the oldest tested release revisions tested: 2, total time: 28m31.327896456s (build: 21m33.890445897s, test: 6m29.191572822s) crash still not fixed on HEAD or HEAD had kernel test errors commit msg: Linux 5.15.117 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 735e8067 P4D 735e8067 PUD 73604067 PMD 0 Oops: 0010 [#1] PREEMPT SMP KASAN CPU: 1 PID: 4292 Comm: syz-executor.0 Not tainted 5.15.117-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 RIP: 0010:0x0 Code: Unable to access opcode bytes at RIP 0xffffffffffffffd6. RSP: 0018:ffffc90002acf738 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000000 RDX: ffff88802057b278 RSI: 0000000000000000 RDI: ffffffff893caee0 RBP: ffff88802057b268 R08: ffff88801ffbe000 R09: 0000000000000138 R10: ffff88802057b100 R11: 0000000000000001 R12: 0000000000000000 R13: dffffc0000000000 R14: 0000000000000000 R15: 000000006e81d9c0 FS: 00007ff976bb0700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffffffffffd6 CR3: 000000001d676000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: hdr_find_e.isra.0+0x2f0/0x500 fs/ntfs3/index.c:712 indx_find+0x201/0x950 fs/ntfs3/index.c:1094 dir_search_u+0x1ac/0x2f0 fs/ntfs3/dir.c:254 ntfs_extend_init+0x177/0x480 fs/ntfs3/fsntfs.c:214 ntfs_fill_super+0x2e4e/0x3670 fs/ntfs3/super.c:1238 get_tree_bdev+0x398/0x680 fs/super.c:1303 vfs_get_tree+0x7f/0x2c0 fs/super.c:1508 do_new_mount fs/namespace.c:2994 [inline] path_mount+0x41e/0x1a30 fs/namespace.c:3324 do_mount fs/namespace.c:3337 [inline] __do_sys_mount fs/namespace.c:3545 [inline] __se_sys_mount fs/namespace.c:3522 [inline] __x64_sys_mount+0x1f5/0x260 fs/namespace.c:3522 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x61/0xcb RIP: 0033:0x7ff97783f62a 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:00007ff976baff88 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 000000000001f6de RCX: 00007ff97783f62a RDX: 000000002001f700 RSI: 0000000020000180 RDI: 00007ff976baffe0 RBP: 00007ff976bb0020 R08: 00007ff976bb0020 R09: 0000000000000013 R10: 0000000000000013 R11: 0000000000000246 R12: 000000002001f700 R13: 0000000020000180 R14: 00007ff976baffe0 R15: 0000000020000140 Modules linked in: CR2: 0000000000000000 ---[ end trace bc42d54262cd95e3 ]--- RIP: 0010:0x0 Code: Unable to access opcode bytes at RIP 0xffffffffffffffd6. RSP: 0018:ffffc90002acf738 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000000 RDX: ffff88802057b278 RSI: 0000000000000000 RDI: ffffffff893caee0 RBP: ffff88802057b268 R08: ffff88801ffbe000 R09: 0000000000000138 R10: ffff88802057b100 R11: 0000000000000001 R12: 0000000000000000 R13: dffffc0000000000 R14: 0000000000000000 R15: 000000006e81d9c0 FS: 00007ff976bb0700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffffffffffd6 CR3: 000000001d676000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400