Hello, syzbot found the following issue on: HEAD commit: 715abedee4cd Add linux-next specific files for 20230515 git tree: linux-next console output: https://syzkaller.appspot.com/x/log.txt?x=13c96725280000 kernel config: https://syzkaller.appspot.com/x/.config?x=6a2745d066dda0ec dashboard link: https://syzkaller.appspot.com/bug?extid=1c54f0eff457978ad5f9 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=1588e999280000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1013cbc1280000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/d4d1d06b34b8/disk-715abede.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/3ef33a86fdc8/vmlinux-715abede.xz kernel image: https://storage.googleapis.com/syzbot-assets/e0006b413ed1/bzImage-715abede.xz mounted in repro: https://storage.googleapis.com/syzbot-assets/0e228936b617/mount_0.gz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+1c54f0eff457978ad5f9@xxxxxxxxxxxxxxxxxxxxxxxxx general protection fault, probably for non-canonical address 0xdffffc000000839c: 0000 [#1] PREEMPT SMP KASAN KASAN: probably user-memory-access in range [0x0000000000041ce0-0x0000000000041ce7] CPU: 0 PID: 5001 Comm: syz-executor387 Not tainted 6.4.0-rc2-next-20230515-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023 RIP: 0010:__iterate_interfaces+0x85/0x570 net/mac80211/util.c:749 Code: 40 1b 00 00 4c 39 f3 0f 84 82 02 00 00 48 bd 00 00 00 00 00 fc ff df e8 f9 d5 ec f7 4c 8d a3 98 1c 00 00 4c 89 e0 48 c1 e8 03 <0f> b6 04 28 84 c0 74 08 3c 03 0f 8e 5d 04 00 00 8b bb 98 1c 00 00 RSP: 0018:ffffc90000007d90 EFLAGS: 00010206 RAX: 000000000000839c RBX: 0000000000040048 RCX: 0000000000000100 RDX: ffff888026db8000 RSI: ffffffff89974db7 RDI: 0000000000000005 RBP: dffffc0000000000 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000000 R11: ffffc90000007ff8 R12: 0000000000041ce0 R13: 0000000000000000 R14: ffff88802ab22920 R15: 0000000000000002 FS: 00005555565e7300(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000564e16122000 CR3: 0000000021303000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <IRQ> ieee80211_iterate_active_interfaces_atomic+0x73/0x1c0 net/mac80211/util.c:802 mac80211_hwsim_beacon+0x101/0x200 drivers/net/wireless/virtual/mac80211_hwsim.c:2283 __run_hrtimer kernel/time/hrtimer.c:1685 [inline] __hrtimer_run_queues+0x599/0xa30 kernel/time/hrtimer.c:1749 hrtimer_run_softirq+0x17f/0x360 kernel/time/hrtimer.c:1766 __do_softirq+0x1d4/0x905 kernel/softirq.c:553 invoke_softirq kernel/softirq.c:427 [inline] __irq_exit_rcu kernel/softirq.c:632 [inline] irq_exit_rcu+0xb7/0x120 kernel/softirq.c:644 sysvec_apic_timer_interrupt+0x97/0xc0 arch/x86/kernel/apic/apic.c:1106 </IRQ> <TASK> asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645 RIP: 0010:memmove+0x28/0x1b0 arch/x86/lib/memmove_64.S:44 Code: c3 90 f3 0f 1e fa 48 89 f8 48 39 fe 7d 0f 49 89 f0 49 01 d0 49 39 f8 0f 8f b5 00 00 00 48 83 fa 20 0f 82 01 01 00 00 48 89 d1 <f3> a4 c3 48 81 fa a8 02 00 00 72 05 40 38 fe 74 47 48 83 ea 20 48 RSP: 0018:ffffc900039aefb0 EFLAGS: 00010282 RAX: ffff888073521fb4 RBX: 0000000000000002 RCX: fffffffff2718d78 RDX: ffffffffffffffe1 RSI: ffff888080e0920d RDI: ffff888080e0921d RBP: 0000000000000020 R08: ffff888073521f85 R09: 0000766972705f73 R10: 667265736965722e R11: 0000766972705f73 R12: 0000000000000001 R13: 0000000000000001 R14: ffff888073521fa4 R15: 0000000000000010 leaf_paste_entries+0x44d/0x910 fs/reiserfs/lbalance.c:1377 balance_leaf_finish_node_paste_dirent fs/reiserfs/do_balan.c:1295 [inline] balance_leaf_finish_node_paste fs/reiserfs/do_balan.c:1321 [inline] balance_leaf_finish_node fs/reiserfs/do_balan.c:1364 [inline] balance_leaf+0x9853/0xddc0 fs/reiserfs/do_balan.c:1452 do_balance+0x319/0x810 fs/reiserfs/do_balan.c:1888 reiserfs_paste_into_item+0x74b/0x8d0 fs/reiserfs/stree.c:2157 reiserfs_add_entry+0x8cb/0xcf0 fs/reiserfs/namei.c:565 reiserfs_mkdir+0x683/0x990 fs/reiserfs/namei.c:860 xattr_mkdir fs/reiserfs/xattr.c:77 [inline] create_privroot fs/reiserfs/xattr.c:890 [inline] reiserfs_xattr_init+0x57e/0xbc0 fs/reiserfs/xattr.c:1006 reiserfs_fill_super+0x2129/0x2eb0 fs/reiserfs/super.c:2175 mount_bdev+0x357/0x420 fs/super.c:1380 legacy_get_tree+0x109/0x220 fs/fs_context.c:610 vfs_get_tree+0x8d/0x350 fs/super.c:1510 do_new_mount fs/namespace.c:3039 [inline] path_mount+0x134b/0x1e40 fs/namespace.c:3369 do_mount fs/namespace.c:3382 [inline] __do_sys_mount fs/namespace.c:3591 [inline] __se_sys_mount fs/namespace.c:3568 [inline] __x64_sys_mount+0x283/0x300 fs/namespace.c:3568 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: 0033:0x7fdf5f19069a ------------[ cut here ]------------ WARNING: CPU: 0 PID: 5001 at arch/x86/mm/tlb.c:1295 nmi_uaccess_okay+0x99/0xb0 arch/x86/mm/tlb.c:1295 Modules linked in: CPU: 0 PID: 5001 Comm: syz-executor387 Not tainted 6.4.0-rc2-next-20230515-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023 RIP: 0010:nmi_uaccess_okay+0x99/0xb0 arch/x86/mm/tlb.c:1295 Code: d8 48 ba 00 f0 ff ff ff ff 0f 00 41 b8 01 00 00 00 48 21 d0 48 ba 00 00 00 00 80 88 ff ff 48 01 d0 48 39 85 80 00 00 00 74 b0 <0f> 0b eb ac 0f 0b eb a0 e8 5a 59 9d 00 eb 8d e8 53 59 9d 00 eb be RSP: 0018:ffffc90000007a18 EFLAGS: 00010007 RAX: ffff888021303000 RBX: ffff8880780c8000 RCX: 0000000000000100 RDX: ffff888000000000 RSI: ffffffff8a063b4d RDI: ffff8880780c8080 RBP: ffff8880780c8000 R08: 0000000000000001 R09: 00007fdf5f190670 R10: 00007fdf5f1906b0 R11: 0000000000000001 R12: 00007fdf5f190670 R13: 00007fdf5f1906b0 R14: 0000000000000000 R15: ffffc90000007b88 FS: 00005555565e7300(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000564e16122000 CR3: 0000000021303000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <IRQ> copy_from_user_nmi+0x62/0x150 arch/x86/lib/usercopy.c:39 copy_code arch/x86/kernel/dumpstack.c:91 [inline] show_opcodes+0x5d/0xd0 arch/x86/kernel/dumpstack.c:121 show_ip arch/x86/kernel/dumpstack.c:144 [inline] show_iret_regs+0x30/0x60 arch/x86/kernel/dumpstack.c:149 __show_regs+0x22/0x680 arch/x86/kernel/process_64.c:75 show_trace_log_lvl+0x256/0x390 arch/x86/kernel/dumpstack.c:298 __die_body arch/x86/kernel/dumpstack.c:417 [inline] die_addr+0x3c/0xa0 arch/x86/kernel/dumpstack.c:457 __exc_general_protection arch/x86/kernel/traps.c:783 [inline] exc_general_protection+0x129/0x230 arch/x86/kernel/traps.c:728 asm_exc_general_protection+0x26/0x30 arch/x86/include/asm/idtentry.h:564 RIP: 0010:__iterate_interfaces+0x85/0x570 net/mac80211/util.c:749 Code: 40 1b 00 00 4c 39 f3 0f 84 82 02 00 00 48 bd 00 00 00 00 00 fc ff df e8 f9 d5 ec f7 4c 8d a3 98 1c 00 00 4c 89 e0 48 c1 e8 03 <0f> b6 04 28 84 c0 74 08 3c 03 0f 8e 5d 04 00 00 8b bb 98 1c 00 00 RSP: 0018:ffffc90000007d90 EFLAGS: 00010206 RAX: 000000000000839c RBX: 0000000000040048 RCX: 0000000000000100 RDX: ffff888026db8000 RSI: ffffffff89974db7 RDI: 0000000000000005 RBP: dffffc0000000000 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000000 R11: ffffc90000007ff8 R12: 0000000000041ce0 R13: 0000000000000000 R14: ffff88802ab22920 R15: 0000000000000002 ieee80211_iterate_active_interfaces_atomic+0x73/0x1c0 net/mac80211/util.c:802 mac80211_hwsim_beacon+0x101/0x200 drivers/net/wireless/virtual/mac80211_hwsim.c:2283 __run_hrtimer kernel/time/hrtimer.c:1685 [inline] __hrtimer_run_queues+0x599/0xa30 kernel/time/hrtimer.c:1749 hrtimer_run_softirq+0x17f/0x360 kernel/time/hrtimer.c:1766 __do_softirq+0x1d4/0x905 kernel/softirq.c:553 invoke_softirq kernel/softirq.c:427 [inline] __irq_exit_rcu kernel/softirq.c:632 [inline] irq_exit_rcu+0xb7/0x120 kernel/softirq.c:644 sysvec_apic_timer_interrupt+0x97/0xc0 arch/x86/kernel/apic/apic.c:1106 </IRQ> <TASK> asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645 RIP: 0010:memmove+0x28/0x1b0 arch/x86/lib/memmove_64.S:44 Code: c3 90 f3 0f 1e fa 48 89 f8 48 39 fe 7d 0f 49 89 f0 49 01 d0 49 39 f8 0f 8f b5 00 00 00 48 83 fa 20 0f 82 01 01 00 00 48 89 d1 <f3> a4 c3 48 81 fa a8 02 00 00 72 05 40 38 fe 74 47 48 83 ea 20 48 RSP: 0018:ffffc900039aefb0 EFLAGS: 00010282 RAX: ffff888073521fb4 RBX: 0000000000000002 RCX: fffffffff2718d78 RDX: ffffffffffffffe1 RSI: ffff888080e0920d RDI: ffff888080e0921d RBP: 0000000000000020 R08: ffff888073521f85 R09: 0000766972705f73 R10: 667265736965722e R11: 0000766972705f73 R12: 0000000000000001 R13: 0000000000000001 R14: ffff888073521fa4 R15: 0000000000000010 leaf_paste_entries+0x44d/0x910 fs/reiserfs/lbalance.c:1377 balance_leaf_finish_node_paste_dirent fs/reiserfs/do_balan.c:1295 [inline] balance_leaf_finish_node_paste fs/reiserfs/do_balan.c:1321 [inline] balance_leaf_finish_node fs/reiserfs/do_balan.c:1364 [inline] balance_leaf+0x9853/0xddc0 fs/reiserfs/do_balan.c:1452 do_balance+0x319/0x810 fs/reiserfs/do_balan.c:1888 reiserfs_paste_into_item+0x74b/0x8d0 fs/reiserfs/stree.c:2157 reiserfs_add_entry+0x8cb/0xcf0 fs/reiserfs/namei.c:565 reiserfs_mkdir+0x683/0x990 fs/reiserfs/namei.c:860 xattr_mkdir fs/reiserfs/xattr.c:77 [inline] create_privroot fs/reiserfs/xattr.c:890 [inline] reiserfs_xattr_init+0x57e/0xbc0 fs/reiserfs/xattr.c:1006 reiserfs_fill_super+0x2129/0x2eb0 fs/reiserfs/super.c:2175 mount_bdev+0x357/0x420 fs/super.c:1380 legacy_get_tree+0x109/0x220 fs/fs_context.c:610 vfs_get_tree+0x8d/0x350 fs/super.c:1510 do_new_mount fs/namespace.c:3039 [inline] path_mount+0x134b/0x1e40 fs/namespace.c:3369 do_mount fs/namespace.c:3382 [inline] __do_sys_mount fs/namespace.c:3591 [inline] __se_sys_mount fs/namespace.c:3568 [inline] __x64_sys_mount+0x283/0x300 fs/namespace.c:3568 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: 0033:0x7fdf5f19069a Code: Unable to access opcode bytes at 0x7fdf5f190670. RSP: 002b:00007fffd1387398 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fdf5f19069a RDX: 0000000020001100 RSI: 0000000020000180 RDI: 00007fffd13873b0 RBP: 00007fffd13873b0 R08: 00007fffd13873f0 R09: 00000000000010de R10: 0000000000000080 R11: 0000000000000286 R12: 0000000000000004 R13: 00005555565e72b8 R14: 0000000000000080 R15: 00007fffd13873f0 </TASK> ---------------- Code disassembly (best guess): 0: 40 1b 00 rex sbb (%rax),%eax 3: 00 4c 39 f3 add %cl,-0xd(%rcx,%rdi,1) 7: 0f 84 82 02 00 00 je 0x28f d: 48 bd 00 00 00 00 00 movabs $0xdffffc0000000000,%rbp 14: fc ff df 17: e8 f9 d5 ec f7 callq 0xf7ecd615 1c: 4c 8d a3 98 1c 00 00 lea 0x1c98(%rbx),%r12 23: 4c 89 e0 mov %r12,%rax 26: 48 c1 e8 03 shr $0x3,%rax * 2a: 0f b6 04 28 movzbl (%rax,%rbp,1),%eax <-- trapping instruction 2e: 84 c0 test %al,%al 30: 74 08 je 0x3a 32: 3c 03 cmp $0x3,%al 34: 0f 8e 5d 04 00 00 jle 0x497 3a: 8b bb 98 1c 00 00 mov 0x1c98(%rbx),%edi --- 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
