ci2 starts bisection 2023-05-08 21:12:19.482372659 +0000 UTC m=+7688.825732584 bisecting fixing commit since 18940c888c85fd7527375343bd4fcc94a540c69c building syzkaller on fbf0499acc828df26995835e51d83c3a0117e716 ensuring issue is reproducible on original commit 18940c888c85fd7527375343bd4fcc94a540c69c testing commit 18940c888c85fd7527375343bd4fcc94a540c69c gcc compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: f9ec64362073892190d315b6a33acb0fb8296183ae1c62dbb8b94ea06bed376f all runs: crashed: general protection fault in ni_readpage_cmpr testing current HEAD ba0ad6ed89fd5dada3b7b65ef2b08e95d449d4ab testing commit ba0ad6ed89fd5dada3b7b65ef2b08e95d449d4ab gcc compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 0031652cf296a52fbf1288e811a160cba543b7a23b59b9f46db8c0240294b4b2 all runs: crashed: general protection fault in ni_readpage_cmpr crash still not fixed/happens on the oldest tested release revisions tested: 2, total time: 1h16m21.021234034s (build: 1h8m29.949438578s, test: 7m9.533056814s) crash still not fixed on HEAD or HEAD had kernel test errors commit msg: media: nxp: imx8-isi: fix buiding on 32-bit crash: general protection fault in ni_readpage_cmpr RAX: ffffffffffffffda RBX: 00007f34abdabf80 RCX: 00007f34abc8c0f9 RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000000000000004 RBP: 00007f34acabc1d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0001000000201005 R11: 0000000000000246 R12: 0000000000000002 R13: 00007ffebdd0691f R14: 00007f34acabc300 R15: 0000000000022000 general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f] CPU: 0 PID: 5502 Comm: syz-executor.0 Not tainted 6.4.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023 RIP: 0010:_compound_head include/linux/page-flags.h:245 [inline] RIP: 0010:unlock_page+0x21/0xb0 mm/folio-compat.c:21 Code: 91 0f 1f 84 00 00 00 00 00 f3 0f 1e fa 41 57 41 56 53 49 89 fe 49 bf 00 00 00 00 00 fc ff df 48 8d 5f 08 48 89 d8 48 c1 e8 03 <42> 80 3c 38 00 74 08 48 89 df e8 30 fc 1c 00 48 8b 03 a8 01 75 69 RSP: 0018:ffffc900048ef2e0 EFLAGS: 00010202 RAX: 0000000000000001 RBX: 0000000000000008 RCX: dffffc0000000000 RDX: 0000000000000001 RSI: 0000000000000008 RDI: 0000000000000000 RBP: 0000000000000008 R08: dffffc0000000000 R09: fffff94000372ca1 R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000040 R13: ffffea0001b96500 R14: 0000000000000000 R15: dffffc0000000000 FS: 00007f34acabc700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f34abd15889 CR3: 0000000021caf000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ni_readpage_cmpr+0x416/0x760 fs/ntfs3/frecord.c:2149 ntfs_read_folio+0x10c/0x180 fs/ntfs3/inode.c:716 filemap_read_folio+0x14e/0x530 mm/filemap.c:2421 filemap_create_folio mm/filemap.c:2549 [inline] filemap_get_pages+0xaa2/0x1bf0 mm/filemap.c:2602 filemap_read+0x397/0xd10 mm/filemap.c:2690 call_read_iter include/linux/fs.h:1862 [inline] generic_file_splice_read+0x23a/0x5b0 fs/splice.c:419 do_splice_to fs/splice.c:902 [inline] splice_direct_to_actor+0x39c/0xa60 fs/splice.c:973 do_splice_direct+0x268/0x3a0 fs/splice.c:1082 do_sendfile+0x4f5/0xc20 fs/read_write.c:1254 __do_sys_sendfile64 fs/read_write.c:1322 [inline] __se_sys_sendfile64+0x143/0x190 fs/read_write.c:1308 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f34abc8c0f9 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:00007f34acabc168 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 00007f34abdabf80 RCX: 00007f34abc8c0f9 RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000000000000004 RBP: 00007f34acabc1d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0001000000201005 R11: 0000000000000246 R12: 0000000000000002 R13: 00007ffebdd0691f R14: 00007f34acabc300 R15: 0000000000022000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:_compound_head include/linux/page-flags.h:245 [inline] RIP: 0010:unlock_page+0x21/0xb0 mm/folio-compat.c:21 Code: 91 0f 1f 84 00 00 00 00 00 f3 0f 1e fa 41 57 41 56 53 49 89 fe 49 bf 00 00 00 00 00 fc ff df 48 8d 5f 08 48 89 d8 48 c1 e8 03 <42> 80 3c 38 00 74 08 48 89 df e8 30 fc 1c 00 48 8b 03 a8 01 75 69 RSP: 0018:ffffc900048ef2e0 EFLAGS: 00010202 RAX: 0000000000000001 RBX: 0000000000000008 RCX: dffffc0000000000 RDX: 0000000000000001 RSI: 0000000000000008 RDI: 0000000000000000 RBP: 0000000000000008 R08: dffffc0000000000 R09: fffff94000372ca1 R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000040 R13: ffffea0001b96500 R14: 0000000000000000 R15: dffffc0000000000 FS: 00007f34acabc700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055bf8e1b8950 CR3: 0000000021caf000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 91 xchg %eax,%ecx 1: 0f 1f 84 00 00 00 00 nopl 0x0(%rax,%rax,1) 8: 00 9: f3 0f 1e fa endbr64 d: 41 57 push %r15 f: 41 56 push %r14 11: 53 push %rbx 12: 49 89 fe mov %rdi,%r14 15: 49 bf 00 00 00 00 00 movabs $0xdffffc0000000000,%r15 1c: fc ff df 1f: 48 8d 5f 08 lea 0x8(%rdi),%rbx 23: 48 89 d8 mov %rbx,%rax 26: 48 c1 e8 03 shr $0x3,%rax * 2a: 42 80 3c 38 00 cmpb $0x0,(%rax,%r15,1) <-- trapping instruction 2f: 74 08 je 0x39 31: 48 89 df mov %rbx,%rdi 34: e8 30 fc 1c 00 callq 0x1cfc69 39: 48 8b 03 mov (%rbx),%rax 3c: a8 01 test $0x1,%al 3e: 75 69 jne 0xa9