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X-BeenThere: linux-nvme@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-nvme" Errors-To: linux-nvme-bounces+linux-nvme=archiver.kernel.org@lists.infradead.org Hello, syzbot found the following issue on: HEAD commit: 4056b3c9d3c9 Merge tag 'nios2_update_for_v7.4' of git://gi.. git tree: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git console output: https://syzkaller.appspot.com/x/log.txt?x=14108235580000 kernel config: https://syzkaller.appspot.com/x/.config?x=b38d39c45202f4fa dashboard link: https://syzkaller.appspot.com/bug?extid=be62d4b375542ecebd17 compiler: Debian clang version 22.1.8 (1~deb13u4), Debian LLD 22.1.8 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=16108235580000 IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+be62d4b375542ecebd17@syzkaller.appspotmail.com ------------[ cut here ]------------ pe->tgtport WARNING: drivers/nvme/target/fc.c:1327 at nvmet_fc_portentry_rebind_tgt+0x1d7/0x1e0 drivers/nvme/target/fc.c:1327, CPU#1: syz-executor148/5937 Modules linked in: CPU: 1 UID: 0 PID: 5937 Comm: syz-executor148 Not tainted syzkaller #0 PREEMPT_{RT,(full)} Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/07/2026 RIP: 0010:nvmet_fc_portentry_rebind_tgt+0x1d7/0x1e0 drivers/nvme/target/fc.c:1327 Code: 6d 3d fc 48 8b 04 24 49 89 06 48 c7 c7 20 0f c8 8f 48 83 c4 18 5b 41 5c 41 5d 41 5e 41 5f 5d e9 3f ab 66 05 e8 ba a7 d0 fb 90 <0f> 0b 90 eb a6 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 RSP: 0018:ffffc9000155fa78 EFLAGS: 00010293 RAX: ffffffff85f63196 RBX: dffffc0000000000 RCX: ffff888032880000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000 R10: dffffc0000000000 R11: fffff520002abf40 R12: 1ffff1100741b8d0 R13: 0000000000000001 R14: ffff88803a0dc680 R15: ffff888012526800 FS: 00007f3c0db506c0(0000) GS:ffff888124abb000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f3c0db4fff8 CR3: 0000000042756000 CR4: 00000000003526f0 Call Trace: nvmet_fc_register_targetport+0x75a/0x950 drivers/nvme/target/fc.c:1417 fcloop_create_target_port+0x135/0x4d0 drivers/nvme/target/fcloop.c:1558 kernfs_fop_write_iter+0x3a5/0x540 fs/kernfs/file.c:345 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61e/0xbb0 fs/read_write.c:687 ksys_write+0x156/0x270 fs/read_write.c:739 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline] do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f3c0e3ae35e Code: 08 0f 85 f5 e2 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 90 41 57 41 56 4d 89 c6 41 55 4d 89 cd 41 54 55 53 48 83 ec 08 RSP: 002b:00007f3c0db50118 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f3c0db506c0 RCX: 00007f3c0e3ae35e RDX: 000000000000002f RSI: 00007f3c0e427b40 RDI: 0000000000000004 RBP: 00007f3c0e427b40 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: ffffffffffffffd0 R13: 0000000000000010 R14: 00007ffdb343b7d0 R15: 00007ffdb343b8b8 --- 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@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