ci2 starts bisection 2023-01-21 07:25:41.620980321 +0000 UTC m=+24508.469620784 bisecting fixing commit since 7f2e600bf63a9cda882a6c86de04183e5061e8ee building syzkaller on 08977f5d5e344fa0ac0b80af0b72fc3f1468d6a5 ensuring issue is reproducible on original commit 7f2e600bf63a9cda882a6c86de04183e5061e8ee testing commit 7f2e600bf63a9cda882a6c86de04183e5061e8ee gcc compiler: Debian clang version 13.0.1-++20220126092033+75e33f71c2da-1~exp1~20220126212112.63, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 4b3d8567476c9fdf45488bd6380221f2d2bd29b5e7b058e4a994f9d8b80758a8 all runs: crashed: BUG: unable to handle kernel paging request in z_erofs_decompress_queue testing current HEAD 72d681a01da5f02769fd75f229ed2f9276894c4f testing commit 72d681a01da5f02769fd75f229ed2f9276894c4f gcc compiler: Debian clang version 13.0.1-++20220126092033+75e33f71c2da-1~exp1~20220126212112.63, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 197857d911722e211585e2f66c38eeef5549523d0ed8093df6617f3e800c5023 all runs: crashed: BUG: unable to handle kernel paging request in z_erofs_decompress_queue revisions tested: 2, total time: 17m14.881914929s (build: 10m6.164432608s, test: 5m36.290875583s) the crash still happens on HEAD commit msg: Revert "net: use struct_group to copy ip/ipv6 header addresses" crash: BUG: unable to handle kernel paging request in z_erofs_decompress_queue erofs: (device loop0): z_erofs_pcluster_readmore: readmore error at page 3 @ nid 36 attempt to access beyond end of device loop0: rw=0, want=2201354232, limit=264192 attempt to access beyond end of device loop0: rw=0, want=20841953384, limit=264192 BUG: unable to handle page fault for address: fffff52100093e33 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 23ffef067 P4D 23ffef067 PUD 0 Oops: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 475 Comm: syz-executor.0 Not tainted 5.15.80-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023 RIP: 0010:z_erofs_decompress_pcluster fs/erofs/zdata.c:934 [inline] RIP: 0010:z_erofs_decompress_queue+0xa42/0x1740 fs/erofs/zdata.c:1043 Code: e8 33 b4 8d ff 43 0f b6 44 3d 00 84 c0 48 8b 5c 24 48 0f 85 7f 02 00 00 41 8b 04 24 c1 f8 02 4c 8d 2c c3 4d 89 ec 49 c1 ec 03 <43> 80 3c 3c 00 74 08 4c 89 ef e8 0f b2 8d ff 4d 8b 7d 00 4d 85 ff RSP: 0018:ffffc9000049f080 EFLAGS: 00010a06 RAX: 00000000ffffffff RBX: ffffc9000049f1a0 RCX: ffffffff821074cd RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffffea00048ebea8 RBP: ffffc9000049f5d0 R08: dffffc0000000000 R09: fffff9400091d7d6 R10: fffff9400091d7d6 R11: 1ffffd400091d7d5 R12: 1ffff92100093e33 R13: ffffc9080049f198 R14: ffffea00048ebe80 R15: dffffc0000000000 FS: 00007ff9bb373700(0000) GS:ffff8881f7200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: fffff52100093e33 CR3: 0000000120cfd000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: z_erofs_runqueue+0x114c/0x1210 fs/erofs/zdata.c:1366 z_erofs_readpage+0x2ca/0x4d0 fs/erofs/zdata.c:1453 do_read_cache_page+0x441/0x690 mm/filemap.c:3513 read_cache_page+0x48/0x70 mm/filemap.c:3614 read_mapping_page include/linux/pagemap.h:513 [inline] find_target_block_classic fs/erofs/namei.c:104 [inline] erofs_namei+0x15b/0xf70 fs/erofs/namei.c:184 erofs_lookup+0x11a/0x360 fs/erofs/namei.c:228 __lookup_hash+0x192/0x1f0 fs/namei.c:1560 filename_create+0x244/0x480 fs/namei.c:3709 do_mknodat+0x168/0x4d0 fs/namei.c:3852 __do_sys_mknodat fs/namei.c:3894 [inline] __se_sys_mknodat fs/namei.c:3891 [inline] __x64_sys_mknodat+0xa4/0xc0 fs/namei.c:3891 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x61/0xcb RIP: 0033:0x7ff9bb7ff5a9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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:00007ff9bb373168 EFLAGS: 00000246 ORIG_RAX: 0000000000000103 RAX: ffffffffffffffda RBX: 00007ff9bb91ff80 RCX: 00007ff9bb7ff5a9 RDX: 0000000000000004 RSI: 0000000020000080 RDI: 0000000000000005 RBP: 00007ff9bb85a7b0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000700 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc86441f3f R14: 00007ff9bb373300 R15: 0000000000022000 Modules linked in: CR2: fffff52100093e33 ---[ end trace 651166e86387f56f ]--- RIP: 0010:z_erofs_decompress_pcluster fs/erofs/zdata.c:934 [inline] RIP: 0010:z_erofs_decompress_queue+0xa42/0x1740 fs/erofs/zdata.c:1043 Code: e8 33 b4 8d ff 43 0f b6 44 3d 00 84 c0 48 8b 5c 24 48 0f 85 7f 02 00 00 41 8b 04 24 c1 f8 02 4c 8d 2c c3 4d 89 ec 49 c1 ec 03 <43> 80 3c 3c 00 74 08 4c 89 ef e8 0f b2 8d ff 4d 8b 7d 00 4d 85 ff RSP: 0018:ffffc9000049f080 EFLAGS: 00010a06 RAX: 00000000ffffffff RBX: ffffc9000049f1a0 RCX: ffffffff821074cd RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffffea00048ebea8 RBP: ffffc9000049f5d0 R08: dffffc0000000000 R09: fffff9400091d7d6 R10: fffff9400091d7d6 R11: 1ffffd400091d7d5 R12: 1ffff92100093e33 R13: ffffc9080049f198 R14: ffffea00048ebe80 R15: dffffc0000000000 FS: 00007ff9bb373700(0000) GS:ffff8881f7200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: fffff52100093e33 CR3: 0000000120cfd000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: e8 33 b4 8d ff callq 0xff8db438 5: 43 0f b6 44 3d 00 movzbl 0x0(%r13,%r15,1),%eax b: 84 c0 test %al,%al d: 48 8b 5c 24 48 mov 0x48(%rsp),%rbx 12: 0f 85 7f 02 00 00 jne 0x297 18: 41 8b 04 24 mov (%r12),%eax 1c: c1 f8 02 sar $0x2,%eax 1f: 4c 8d 2c c3 lea (%rbx,%rax,8),%r13 23: 4d 89 ec mov %r13,%r12 26: 49 c1 ec 03 shr $0x3,%r12 * 2a: 43 80 3c 3c 00 cmpb $0x0,(%r12,%r15,1) <-- trapping instruction 2f: 74 08 je 0x39 31: 4c 89 ef mov %r13,%rdi 34: e8 0f b2 8d ff callq 0xff8db248 39: 4d 8b 7d 00 mov 0x0(%r13),%r15 3d: 4d 85 ff test %r15,%r15