Hello, syzbot found the following issue on: HEAD commit: 533925cb7604 Merge tag 'riscv-for-linus-6.5-mw1' of git://.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=151dba0ca80000 kernel config: https://syzkaller.appspot.com/x/.config?x=998aa1e85d118b55 dashboard link: https://syzkaller.appspot.com/bug?extid=e3705186451a87fd93b8 compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=16a4eb98a80000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=14ec1a6f280000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/03caccccf2c4/disk-533925cb.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/2fc5ec527ecb/vmlinux-533925cb.xz kernel image: https://storage.googleapis.com/syzbot-assets/1c17e9d79ab7/bzImage-533925cb.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+e3705186451a87fd93b8@xxxxxxxxxxxxxxxxxxxxxxxxx general protection fault, probably for non-canonical address 0xdffffc0000000007: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000038-0x000000000000003f] CPU: 1 PID: 5014 Comm: syz-executor823 Not tainted 6.4.0-syzkaller-08881-g533925cb7604 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 RIP: 0010:idempotent kernel/module/main.c:3078 [inline] RIP: 0010:init_module_from_file+0x1c1/0x6a0 kernel/module/main.c:3124 Code: 0f 84 c0 01 00 00 e8 7e ee 12 00 4d 89 e7 49 83 ef 08 74 61 e8 70 ee 12 00 4c 89 fa 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 59 04 00 00 4d 3b 2f 0f 84 ae 00 00 00 e8 47 ee RSP: 0018:ffffc900033ffd28 EFLAGS: 00010203 RAX: dffffc0000000000 RBX: 000000000000002e RCX: 0000000000000000 RDX: 0000000000000007 RSI: ffffffff8170eaa0 RDI: ffffc9000336fe28 RBP: ffff88807adaa280 R08: 0000000000000001 R09: fffff5200067ff97 R10: 0000000000000003 R11: 0000000000000001 R12: ffffc9000336fe28 R13: ffff8880752b54c0 R14: ffffffff91f19290 R15: 000000000000003e FS: 0000555556cec3c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 0000000073bff000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> __do_sys_finit_module kernel/module/main.c:3171 [inline] __se_sys_finit_module kernel/module/main.c:3154 [inline] __x64_sys_finit_module+0xfd/0x190 kernel/module/main.c:3154 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f4b273fcfa9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 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 c0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffd7aa7c1f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000139 RAX: ffffffffffffffda RBX: 0000000000018ef9 RCX: 00007f4b273fcfa9 RDX: 0000000000000002 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd7aa7c2ac R13: 00007ffd7aa7c2e0 R14: 00007ffd7aa7c2c0 R15: 000000000000000a </TASK> Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:idempotent kernel/module/main.c:3078 [inline] RIP: 0010:init_module_from_file+0x1c1/0x6a0 kernel/module/main.c:3124 Code: 0f 84 c0 01 00 00 e8 7e ee 12 00 4d 89 e7 49 83 ef 08 74 61 e8 70 ee 12 00 4c 89 fa 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 59 04 00 00 4d 3b 2f 0f 84 ae 00 00 00 e8 47 ee RSP: 0018:ffffc900033ffd28 EFLAGS: 00010203 RAX: dffffc0000000000 RBX: 000000000000002e RCX: 0000000000000000 RDX: 0000000000000007 RSI: ffffffff8170eaa0 RDI: ffffc9000336fe28 RBP: ffff88807adaa280 R08: 0000000000000001 R09: fffff5200067ff97 R10: 0000000000000003 R11: 0000000000000001 R12: ffffc9000336fe28 R13: ffff8880752b54c0 R14: ffffffff91f19290 R15: 000000000000003e FS: 0000555556cec3c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 0000000073bff000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 0f 84 c0 01 00 00 je 0x1c6 6: e8 7e ee 12 00 callq 0x12ee89 b: 4d 89 e7 mov %r12,%r15 e: 49 83 ef 08 sub $0x8,%r15 12: 74 61 je 0x75 14: e8 70 ee 12 00 callq 0x12ee89 19: 4c 89 fa mov %r15,%rdx 1c: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 23: fc ff df 26: 48 c1 ea 03 shr $0x3,%rdx * 2a: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) <-- trapping instruction 2e: 0f 85 59 04 00 00 jne 0x48d 34: 4d 3b 2f cmp (%r15),%r13 37: 0f 84 ae 00 00 00 je 0xeb 3d: e8 .byte 0xe8 3e: 47 ee rex.RXB out %al,(%dx) --- 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 syzkaller@xxxxxxxxxxxxxxxx. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. If the bug is already fixed, 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 change bug's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the bug is a duplicate of another bug, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup
