Hello, syzbot found the following issue on:
HEAD commit: 83814698cf48 Merge tag 'powerpc-6.10-2' of git://git.kerne.. git tree: upstream console+strace: https://syzkaller.appspot.com/x/log.txt?x=15cb1a16980000 kernel config: https://syzkaller.appspot.com/x/.config?x=238430243a58f702 dashboard link: https://syzkaller.appspot.com/bug?extid=f195123a45ad487ca66c compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1129d362980000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=10d4ce06980000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/49e438bd237c/disk-83814698.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/cc25a0ccc6f6/vmlinux-83814698.xz kernel image: https://storage.googleapis.com/syzbot-assets/85871c08ab8f/bzImage-83814698.xz mounted in repro: https://storage.googleapis.com/syzbot-assets/cc6db24192e2/mount_0.gz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+f195123a45ad487ca...@syzkaller.appspotmail.com ------------[ cut here ]------------ kernel BUG at fs/f2fs/file.c:105! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI CPU: 0 PID: 5092 Comm: syz-executor296 Not tainted 6.10.0-rc1-syzkaller-00304-g83814698cf48 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 RIP: 0010:f2fs_vm_page_mkwrite+0x1679/0x1bb0 fs/f2fs/file.c:105 Code: e7 41 83 e7 01 4c 89 fe e8 84 39 c8 fd 4d 85 ff 0f 84 f6 f8 ff ff e8 46 3e c8 fd 49 83 ec 01 e9 eb f8 ff ff e8 38 3e c8 fd 90 <0f> 0b e8 30 3e c8 fd e8 5b 0a 3b fd e9 f0 f1 ff ff 48 89 4c 24 08 RSP: 0018:ffffc9000316f828 EFLAGS: 00010293 RAX: 0000000000000000 RBX: ffff88807aa48000 RCX: ffffffff83c58900 RDX: ffff8880123a0000 RSI: ffffffff83c596b8 RDI: 0000000000000007 RBP: ffffc9000316fb68 R08: 0000000000000007 R09: 0000000000000000 R10: 0000000000000001 R11: ffffffff9393ffd0 R12: ffffc9000316f8a8 R13: 0000000000000001 R14: ffffea00013dfbc0 R15: ffff88807aa484a8 FS: 0000555581924380(0000) GS:ffff8880b9200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000280 CR3: 00000000791d4000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> do_page_mkwrite+0x17d/0x390 mm/memory.c:3099 wp_page_shared mm/memory.c:3501 [inline] do_wp_page+0xc89/0x3380 mm/memory.c:3651 handle_pte_fault mm/memory.c:5396 [inline] __handle_mm_fault+0x2311/0x53f0 mm/memory.c:5523 handle_mm_fault+0x476/0xa00 mm/memory.c:5688 do_user_addr_fault+0x2e5/0xe50 arch/x86/mm/fault.c:1389 handle_page_fault arch/x86/mm/fault.c:1481 [inline] exc_page_fault+0x5c/0xc0 arch/x86/mm/fault.c:1539 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623 RIP: 0010:rep_movs_alternative+0x33/0x70 arch/x86/lib/copy_user_64.S:58 Code: 40 83 f9 08 73 21 85 c9 74 0f 8a 06 88 07 48 ff c7 48 ff c6 48 ff c9 75 f1 c3 cc cc cc cc 66 0f 1f 84 00 00 00 00 00 48 8b 06 <48> 89 07 48 83 c6 08 48 83 c7 08 83 e9 08 74 df 83 f9 08 73 e8 eb RSP: 0018:ffffc9000316fdd8 EFLAGS: 00050212 RAX: 00000000665cff9a RBX: 0000000000000010 RCX: 0000000000000010 RDX: fffff5200062dfc8 RSI: ffffc9000316fe30 RDI: 0000000020000280 RBP: 0000000020000280 R08: 0000000000000000 R09: fffff5200062dfc7 R10: ffffc9000316fe3f R11: 0000000000000000 R12: ffffc9000316fe30 R13: 0000000020000290 R14: 0000000000000000 R15: 0000000000000000 copy_user_generic arch/x86/include/asm/uaccess_64.h:110 [inline] raw_copy_to_user arch/x86/include/asm/uaccess_64.h:131 [inline] _copy_to_user lib/usercopy.c:46 [inline] _copy_to_user+0xac/0xc0 lib/usercopy.c:39 copy_to_user include/linux/uaccess.h:191 [inline] put_timespec64+0xb6/0x120 kernel/time/time.c:910 __do_sys_clock_gettime kernel/time/posix-timers.c:1144 [inline] __se_sys_clock_gettime kernel/time/posix-timers.c:1132 [inline] __x64_sys_clock_gettime+0x1d5/0x270 kernel/time/posix-timers.c:1132 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7feea661dc19 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 17 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:00007ffeab229a38 EFLAGS: 00000246 ORIG_RAX: 00000000000000e4 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007feea661dc19 RDX: 00007feea661dc19 RSI: 0000000020000280 RDI: 0000000000000000 RBP: 00007feea66965f0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000004 R11: 0000000000000246 R12: 00007ffeab229a70 R13: 00007ffeab229c98 R14: 431bde82d7b634db R15: 00007feea666603b </TASK> Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:f2fs_vm_page_mkwrite+0x1679/0x1bb0 fs/f2fs/file.c:105 Code: e7 41 83 e7 01 4c 89 fe e8 84 39 c8 fd 4d 85 ff 0f 84 f6 f8 ff ff e8 46 3e c8 fd 49 83 ec 01 e9 eb f8 ff ff e8 38 3e c8 fd 90 <0f> 0b e8 30 3e c8 fd e8 5b 0a 3b fd e9 f0 f1 ff ff 48 89 4c 24 08 RSP: 0018:ffffc9000316f828 EFLAGS: 00010293 RAX: 0000000000000000 RBX: ffff88807aa48000 RCX: ffffffff83c58900 RDX: ffff8880123a0000 RSI: ffffffff83c596b8 RDI: 0000000000000007 RBP: ffffc9000316fb68 R08: 0000000000000007 R09: 0000000000000000 R10: 0000000000000001 R11: ffffffff9393ffd0 R12: ffffc9000316f8a8 R13: 0000000000000001 R14: ffffea00013dfbc0 R15: ffff88807aa484a8 FS: 0000555581924380(0000) GS:ffff8880b9200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000280 CR3: 00000000791d4000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 40 83 f9 08 rex cmp $0x8,%ecx 4: 73 21 jae 0x27 6: 85 c9 test %ecx,%ecx 8: 74 0f je 0x19 a: 8a 06 mov (%rsi),%al c: 88 07 mov %al,(%rdi) e: 48 ff c7 inc %rdi 11: 48 ff c6 inc %rsi 14: 48 ff c9 dec %rcx 17: 75 f1 jne 0xa 19: c3 ret 1a: cc int3 1b: cc int3 1c: cc int3 1d: cc int3 1e: 66 0f 1f 84 00 00 00 nopw 0x0(%rax,%rax,1) 25: 00 00 27: 48 8b 06 mov (%rsi),%rax * 2a: 48 89 07 mov %rax,(%rdi) <-- trapping instruction 2d: 48 83 c6 08 add $0x8,%rsi 31: 48 83 c7 08 add $0x8,%rdi 35: 83 e9 08 sub $0x8,%ecx 38: 74 df je 0x19 3a: 83 f9 08 cmp $0x8,%ecx 3d: 73 e8 jae 0x27 3f: eb .byte 0xeb --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkal...@googlegroups.com. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want syzbot to run the reproducer, reply with: #syz test: git://repo/address.git branch-or-commit-hash If you attach or paste a git patch, syzbot will apply it before testing. If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup _______________________________________________ Linux-f2fs-devel mailing list Linux-f2fs-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel
