ci2 starts bisection 2024-10-24 07:29:54.997471079 +0000 UTC m=+118168.981923781 bisecting fixing commit since 993bed180178156a70afdafe8aaf23a117107352 building syzkaller on d367cbe5791e415abaed06819481019104eaf42a ensuring issue is reproducible on original commit 993bed180178156a70afdafe8aaf23a117107352 testing commit 993bed180178156a70afdafe8aaf23a117107352 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 5236f484870922e32950617cd0b805e7b71d91627f8606172214a2ca78c834a0 all runs: crashed: general protection fault in step_into representative crash: general protection fault in step_into, types: [UNKNOWN] check whether we can drop unnecessary instrumentation disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed testing commit 993bed180178156a70afdafe8aaf23a117107352 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 24427d5b5c89622a13759fcf651158fee288c64ab815fcfcd2df5bb584af025f all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in step_into representative crash: BUG: unable to handle kernel NULL pointer dereference in step_into, types: [UNKNOWN] the bug reproduces without the instrumentation disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN LOCKDEP], they are not needed kconfig minimization: base=4920 full=6159 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 [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed testing commit 993bed180178156a70afdafe8aaf23a117107352 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 0c59370c211b55e42296ad5c83c792d56481ea324af4e0502c80993833731551 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in step_into representative crash: BUG: unable to handle kernel NULL pointer dereference in step_into, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed testing commit 993bed180178156a70afdafe8aaf23a117107352 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 499663b0d80630ea8bf3c10ae56eed00eff20948c8a423c0722ad83e525381cb all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in step_into representative crash: BUG: unable to handle kernel NULL pointer dereference in step_into, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [HANG LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit 993bed180178156a70afdafe8aaf23a117107352 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 37df8922d507629f757fa3167d9e7d2b971e4e316d4211cb237071e9cdc93374 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in step_into representative crash: BUG: unable to handle kernel NULL pointer dereference in step_into, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN], they are not needed testing commit 993bed180178156a70afdafe8aaf23a117107352 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: edeb87c0d111757576cd90b53dabcc9d45831260c41fefb31821e6e8fa4172b3 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in step_into representative crash: BUG: unable to handle kernel NULL pointer dereference in step_into, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [HANG LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit 993bed180178156a70afdafe8aaf23a117107352 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 failed building 993bed180178156a70afdafe8aaf23a117107352: 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 [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP HANG], 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: 538d141dad01a40e5d1103eec3f51bd0ca90c1cf6740b040a8e76ba9c376645f all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in step_into representative crash: BUG: unable to handle kernel NULL pointer dereference in step_into, types: [UNKNOWN] crash still not fixed/happens on the oldest tested release revisions tested: 7, total time: 1h54m7.922732839s (build: 1h11m19.571440769s, test: 40m38.477640779s) 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 step_into BUG: kernel NULL pointer dereference, address: 0000000000000010 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 113e61067 P4D 113e61067 PUD 113e65067 PMD 0 Oops: 0000 [#1] PREEMPT SMP CPU: 0 PID: 372 Comm: syz-executor.0 Not tainted 5.15.167-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 RIP: 0010:traverse_mounts fs/namei.c:1378 [inline] RIP: 0010:handle_mounts fs/namei.c:1498 [inline] RIP: 0010:step_into+0x1ba/0x790 fs/namei.c:1806 Code: 89 54 24 0c e8 f7 d8 ff ff 44 8b 54 24 0c 84 c0 0f 84 c2 01 00 00 48 8b 03 4c 89 64 24 20 45 89 e9 44 8b 43 38 48 89 44 24 18 <41> 8b 34 24 f7 c6 00 00 07 00 0f 85 aa 01 00 00 81 e6 00 00 70 00 RSP: 0018:ffffc900003d3c38 EFLAGS: 00010246 RAX: ffff8881075ef220 RBX: ffffc900003d3d90 RCX: 0000000000000000 RDX: 0000000000000010 RSI: 0000000000000002 RDI: ffffc900003d3d90 RBP: ffffc900003d3c90 R08: 0000000000000011 R09: 00000000ffffffff R10: 0000000000000002 R11: 0000000000000000 R12: 0000000000000010 R13: 0000000000000002 R14: ffffc900003d3ce8 R15: ffff88810a8450d0 FS: 00007f5b5e8356c0(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000010 CR3: 0000000113e52000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: walk_component+0x6b/0x1b0 fs/namei.c:1982 link_path_walk.part.0+0x236/0x390 fs/namei.c:2303 link_path_walk fs/namei.c:2448 [inline] path_lookupat+0x39/0x1b0 fs/namei.c:2454 filename_lookup+0xc6/0x1d0 fs/namei.c:2484 user_path_at_empty+0x3a/0x60 fs/namei.c:2883 user_path_at include/linux/namei.h:57 [inline] do_mount fs/namespace.c:3345 [inline] __do_sys_mount fs/namespace.c:3556 [inline] __se_sys_mount fs/namespace.c:3533 [inline] __x64_sys_mount+0xae/0x140 fs/namespace.c:3533 x64_sys_call+0x50d/0x990 arch/x86/include/generated/asm/syscalls_64.h:166 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: 0033:0x7f5b5ecb3da9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 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 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f5b5e8350c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f5b5ede1f80 RCX: 00007f5b5ecb3da9 RDX: 0000000000000000 RSI: 0000000020000200 RDI: 0000000000000000 RBP: 00007f5b5ed0047a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f5b5ede1f80 R15: 00007fffedb13a18 Modules linked in: CR2: 0000000000000010 ---[ end trace 26d1248f8b12700f ]--- RIP: 0010:traverse_mounts fs/namei.c:1378 [inline] RIP: 0010:handle_mounts fs/namei.c:1498 [inline] RIP: 0010:step_into+0x1ba/0x790 fs/namei.c:1806 Code: 89 54 24 0c e8 f7 d8 ff ff 44 8b 54 24 0c 84 c0 0f 84 c2 01 00 00 48 8b 03 4c 89 64 24 20 45 89 e9 44 8b 43 38 48 89 44 24 18 <41> 8b 34 24 f7 c6 00 00 07 00 0f 85 aa 01 00 00 81 e6 00 00 70 00 RSP: 0018:ffffc900003d3c38 EFLAGS: 00010246 RAX: ffff8881075ef220 RBX: ffffc900003d3d90 RCX: 0000000000000000 RDX: 0000000000000010 RSI: 0000000000000002 RDI: ffffc900003d3d90 RBP: ffffc900003d3c90 R08: 0000000000000011 R09: 00000000ffffffff R10: 0000000000000002 R11: 0000000000000000 R12: 0000000000000010 R13: 0000000000000002 R14: ffffc900003d3ce8 R15: ffff88810a8450d0 FS: 00007f5b5e8356c0(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000010 CR3: 0000000113e52000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 89 54 24 0c mov %edx,0xc(%rsp) 4: e8 f7 d8 ff ff call 0xffffd900 9: 44 8b 54 24 0c mov 0xc(%rsp),%r10d e: 84 c0 test %al,%al 10: 0f 84 c2 01 00 00 je 0x1d8 16: 48 8b 03 mov (%rbx),%rax 19: 4c 89 64 24 20 mov %r12,0x20(%rsp) 1e: 45 89 e9 mov %r13d,%r9d 21: 44 8b 43 38 mov 0x38(%rbx),%r8d 25: 48 89 44 24 18 mov %rax,0x18(%rsp) * 2a: 41 8b 34 24 mov (%r12),%esi <-- trapping instruction 2e: f7 c6 00 00 07 00 test $0x70000,%esi 34: 0f 85 aa 01 00 00 jne 0x1e4 3a: 81 e6 00 00 70 00 and $0x700000,%esi