ci2 starts bisection 2024-10-27 16:05:01.330590343 +0000 UTC m=+139511.100935328 bisecting fixing commit since db06c48ab67eb5db1ac64a0210d77742e335537a building syzkaller on eaeb5c15ad704753a93bc8f8c7fc422d2a189581 ensuring issue is reproducible on original commit db06c48ab67eb5db1ac64a0210d77742e335537a testing commit db06c48ab67eb5db1ac64a0210d77742e335537a gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 8c67b420bdd40ed7de6e8a074ab57ccbc9e09d5c45508bfe34d74c2027238dbe all runs: crashed: general protection fault in do_renameat2 representative crash: general protection fault in do_renameat2, types: [UNKNOWN] check whether we can drop unnecessary instrumentation disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP HANG], they are not needed testing commit db06c48ab67eb5db1ac64a0210d77742e335537a gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 61fbba0ecf3a92beddadc510dce8faad5f1e185889656050131a5ebad205605e all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in do_renameat2 representative crash: BUG: unable to handle kernel NULL pointer dereference in do_renameat2, types: [UNKNOWN] the bug reproduces without the instrumentation disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed kconfig minimization: base=4920 full=6158 leaves diff=242 split chunks (needed=false): <242> split chunk #0 of len 242 into 5 parts testing without sub-chunk 1/5 disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN], they are not needed testing commit db06c48ab67eb5db1ac64a0210d77742e335537a gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 79e46571577ea29cc635d3badf10c52911dc0203510523ac72fdb04be71c3997 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in do_renameat2 representative crash: BUG: unable to handle kernel NULL pointer dereference in do_renameat2, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN], they are not needed testing commit db06c48ab67eb5db1ac64a0210d77742e335537a gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 75b057ab82f59c2c0dd5f4aa159ce6440a7fbdb7b4beaefac4d5c1df4c670195 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in do_renameat2 representative crash: BUG: unable to handle kernel NULL pointer dereference in do_renameat2, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed testing commit db06c48ab67eb5db1ac64a0210d77742e335537a gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: bd00665fd871a2aa72aec50c54da16283ae9e99647e92fc2b974b4ba3d8dd821 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in do_renameat2 representative crash: BUG: unable to handle kernel NULL pointer dereference in do_renameat2, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP HANG], they are not needed testing commit db06c48ab67eb5db1ac64a0210d77742e335537a gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 6c7ddeb744749d624d74cb23bfbdc2751c4e7d34588a7a0f3a338e0044d49230 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in do_renameat2 representative crash: BUG: unable to handle kernel NULL pointer dereference in do_renameat2, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN LOCKDEP], they are not needed testing commit db06c48ab67eb5db1ac64a0210d77742e335537a gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 failed building db06c48ab67eb5db1ac64a0210d77742e335537a: net/socket.c:1191: undefined reference to `wext_handle_ioctl' net/socket.c:3385: undefined reference to `compat_wext_handle_ioctl' net/core/net-procfs.c:343: undefined reference to `wext_proc_exit' net/core/net-procfs.c:327: undefined reference to `wext_proc_init' minimized to 46 configs; suspects: [HID_ZEROPLUS USB_NET_GL620A USB_NET_MCS7830 USB_NET_NET1080 USB_NET_PLUSB USB_NET_RNDIS_HOST USB_NET_SMSC75XX USB_NET_SMSC95XX USB_NET_SR9700 USB_NET_SR9800 USB_NET_ZAURUS USB_OHCI_HCD USB_OHCI_HCD_PCI USB_OHCI_HCD_PLATFORM USB_OTG USB_OTG_FSM USB_PRINTER USB_SERIAL USB_SERIAL_FTDI_SIO USB_SERIAL_GENERIC USB_SERIAL_PL2303 USB_STORAGE_ALAUDA USB_STORAGE_CYPRESS_ATACB USB_STORAGE_DATAFAB USB_STORAGE_FREECOM USB_STORAGE_ISD200 USB_STORAGE_JUMPSHOT USB_STORAGE_KARMA USB_STORAGE_ONETOUCH USB_STORAGE_SDDR09 USB_STORAGE_SDDR55 USB_STORAGE_USBAT USB_TRANCEVIBRATOR USB_U_AUDIO USB_U_ETHER USB_U_SERIAL USB_WDM WLAN WLAN_VENDOR_ATH WLAN_VENDOR_ATMEL WLAN_VENDOR_BROADCOM WLAN_VENDOR_INTERSIL WLAN_VENDOR_MARVELL WLAN_VENDOR_MEDIATEK WLAN_VENDOR_MICROCHIP WLAN_VENDOR_RALINK WLAN_VENDOR_REALTEK WLAN_VENDOR_RSI WLAN_VENDOR_ZYDAS X86_X32 ZEROPLUS_FF] disabling configs for [BUG KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed testing current HEAD 5e4635681cf1a50f26f88af7a946375ec6908d58 testing commit 5e4635681cf1a50f26f88af7a946375ec6908d58 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 51a83abaf10f9b1f28da706676185e55221ee464bd7d6bef164e0de32ee53e94 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in do_renameat2 representative crash: BUG: unable to handle kernel NULL pointer dereference in do_renameat2, types: [UNKNOWN] crash still not fixed/happens on the oldest tested release revisions tested: 7, total time: 1h41m7.357804538s (build: 1h2m22.355867957s, test: 36m31.177052447s) crash still not fixed or there were kernel test errors commit msg: Revert "perf/aux: Fix AUX buffer serialization" crash: BUG: unable to handle kernel NULL pointer dereference in do_renameat2 BUG: kernel NULL pointer dereference, address: 0000000000000010 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 10da65067 P4D 10da65067 PUD 10da69067 PMD 0 Oops: 0000 [#1] PREEMPT SMP CPU: 1 PID: 451 Comm: syz.0.15 Not tainted 5.15.167-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 RIP: 0010:do_renameat2+0x2a5/0x590 fs/namei.c:4933 Code: 49 89 c4 48 8b b5 58 ff ff ff 48 8d bd 70 ff ff ff 89 da e8 9d 7f ff ff 48 3d 00 f0 ff ff 49 89 c6 41 89 c7 0f 87 22 01 00 00 00 00 00 70 00 41 bf fe ff ff ff 0f 84 08 01 00 00 8b 95 30 ff RSP: 0018:ffffc9000037bdf8 EFLAGS: 00010203 RAX: 0000000000000010 RBX: 0000000000000000 RCX: 0000000600000000 RDX: 0000000000000005 RSI: 0000000500000000 RDI: ffff8881023a5c80 RBP: ffffc9000037bee8 R08: 0000000000000006 R09: 0000000000000064 R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000 R13: ffff8881081da000 R14: 0000000000000010 R15: 0000000000000010 FS: 00007f40e40796c0(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000010 CR3: 000000010b558000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __do_sys_renameat2 fs/namei.c:5018 [inline] __se_sys_renameat2 fs/namei.c:5015 [inline] __x64_sys_renameat2+0x4c/0x60 fs/namei.c:5015 x64_sys_call+0x14e/0x990 arch/x86/include/generated/asm/syscalls_64.h:317 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x33/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7f40e45efbd9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f40e4079048 EFLAGS: 00000246 ORIG_RAX: 000000000000013c RAX: ffffffffffffffda RBX: 00007f40e477df60 RCX: 00007f40e45efbd9 RDX: 0000000000000004 RSI: 0000000020000500 RDI: 0000000000000004 RBP: 00007f40e465ee60 R08: 0000000000000005 R09: 0000000000000000 R10: 00000000200001c0 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f40e477df60 R15: 00007ffc6aead8a8 Modules linked in: CR2: 0000000000000010 ---[ end trace 1d9abbb0349d85d7 ]--- RIP: 0010:do_renameat2+0x2a5/0x590 fs/namei.c:4933 Code: 49 89 c4 48 8b b5 58 ff ff ff 48 8d bd 70 ff ff ff 89 da e8 9d 7f ff ff 48 3d 00 f0 ff ff 49 89 c6 41 89 c7 0f 87 22 01 00 00 00 00 00 70 00 41 bf fe ff ff ff 0f 84 08 01 00 00 8b 95 30 ff RSP: 0018:ffffc9000037bdf8 EFLAGS: 00010203 RAX: 0000000000000010 RBX: 0000000000000000 RCX: 0000000600000000 RDX: 0000000000000005 RSI: 0000000500000000 RDI: ffff8881023a5c80 RBP: ffffc9000037bee8 R08: 0000000000000006 R09: 0000000000000064 R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000 R13: ffff8881081da000 R14: 0000000000000010 R15: 0000000000000010 FS: 00007f40e40796c0(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000010 CR3: 000000010b558000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 49 89 c4 mov %rax,%r12 3: 48 8b b5 58 ff ff ff mov -0xa8(%rbp),%rsi a: 48 8d bd 70 ff ff ff lea -0x90(%rbp),%rdi 11: 89 da mov %ebx,%edx 13: e8 9d 7f ff ff call 0xffff7fb5 18: 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax 1e: 49 89 c6 mov %rax,%r14 21: 41 89 c7 mov %eax,%r15d 24: 0f 87 22 01 00 00 ja 0x14c * 2a: f7 00 00 00 70 00 testl $0x700000,(%rax) <-- trapping instruction 30: 41 bf fe ff ff ff mov $0xfffffffe,%r15d 36: 0f 84 08 01 00 00 je 0x144 3c: 8b .byte 0x8b 3d: 95 xchg %eax,%ebp 3e: 30 ff xor %bh,%bh