ci2 starts bisection 2024-09-17 22:54:45.834378243 +0000 UTC m=+116171.324805805 bisecting fixing commit since 5747d79ab0b7f24db788196258437441f4cf413e building syzkaller on c6d33a012816b8e651cfc2284a27e9659832143b ensuring issue is reproducible on original commit 5747d79ab0b7f24db788196258437441f4cf413e testing commit 5747d79ab0b7f24db788196258437441f4cf413e gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 1aa0e04ffc39cd56581465e1c57ee05ec687f76e5e3fabffcebd2c1936f14fc8 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 [ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN LOCKDEP], they are not needed testing commit 5747d79ab0b7f24db788196258437441f4cf413e gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: bf5018af6f849a7b77e47b4a4f2224e3d39f09a5b621c0e6b6d9a4810a10fdd2 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 [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN], they are not needed kconfig minimization: base=5179 full=6493 leaves diff=257 split chunks (needed=false): <257> split chunk #0 of len 257 into 5 parts testing without sub-chunk 1/5 disabling configs for [HANG LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit 5747d79ab0b7f24db788196258437441f4cf413e gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 94f1cd026512c7e43659c6f91212884e5169a7dc27e1fded6710f48f0b15db7f 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 [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed testing commit 5747d79ab0b7f24db788196258437441f4cf413e gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: f5f354df3de983af4de25c6a6e50b78d5d169a5040c92d057aa4b018d48b58f9 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 5747d79ab0b7f24db788196258437441f4cf413e gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4e03a199a0c885f86b75f2598519462ffc0b2187ad34a007b33ec3a7ba8a16d7 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 [HANG LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit 5747d79ab0b7f24db788196258437441f4cf413e gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4b7f448852c235fddd945dc35e16fa169ecae6727904cd27869be548cd76fe08 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 [BUG KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed testing commit 5747d79ab0b7f24db788196258437441f4cf413e gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 failed building 5747d79ab0b7f24db788196258437441f4cf413e: net/socket.c:1245: undefined reference to `wext_handle_ioctl' net/socket.c:3442: undefined reference to `compat_wext_handle_ioctl' net/core/net-procfs.c:329: undefined reference to `wext_proc_init' net/core/net-procfs.c:345: undefined reference to `wext_proc_exit' minimized to 49 configs; suspects: [HID_ZEROPLUS 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_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 V4L2_ASYNC V4L2_FWNODE VIDEO_CAMERA_SENSOR WLAN WLAN_VENDOR_ATH WLAN_VENDOR_ATMEL WLAN_VENDOR_BROADCOM WLAN_VENDOR_INTERSIL WLAN_VENDOR_MARVELL WLAN_VENDOR_MEDIATEK WLAN_VENDOR_MICROCHIP WLAN_VENDOR_PURELIFI WLAN_VENDOR_RALINK WLAN_VENDOR_REALTEK WLAN_VENDOR_RSI WLAN_VENDOR_SILABS WLAN_VENDOR_ZYDAS X86_X32_ABI ZEROPLUS_FF] disabling configs for [HANG LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing current HEAD d1f3a046a65db6416f9db0df03c6c1ca5916ac21 testing commit d1f3a046a65db6416f9db0df03c6c1ca5916ac21 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 932fdece5618a0b8e3b0c6b0a11bfadeb744f0adaf68717b10b7367b8ed5c644 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: 1h0m31.098166115s (build: 18m31.837735476s, test: 25m33.301921089s) crash still not fixed or there were kernel test errors commit msg: FROMGIT: f2fs: prevent atomic file from being dirtied before commit 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 113386067 P4D 113386067 PUD 113389067 PMD 0 Oops: 0000 [#1] PREEMPT SMP CPU: 1 PID: 442 Comm: syz.0.15 Not tainted 6.1.93-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 RIP: 0010:traverse_mounts fs/namei.c:1430 [inline] RIP: 0010:handle_mounts fs/namei.c:1542 [inline] RIP: 0010:step_into+0x40/0x2f0 fs/namei.c:1835 Code: f6 48 89 fb 65 48 8b 04 25 28 00 00 00 48 89 45 d0 c6 45 cf 00 48 8b 07 48 89 45 b8 48 89 55 c0 44 8b 47 38 41 f6 c0 40 75 3e <41> 8b 37 f7 c6 00 00 07 00 0f 85 e8 00 00 00 f7 c6 00 00 70 00 75 RSP: 0018:ffffc900008b7c58 EFLAGS: 00010246 RAX: ffff888108cce320 RBX: ffffc900008b7d60 RCX: 0000000000000001 RDX: 0000000000000010 RSI: 0000000000000002 RDI: ffffc900008b7d60 RBP: ffffc900008b7ca8 R08: 0000000000000011 R09: ffffc900008b7ba0 R10: ffff888113378020 R11: ffff888100041400 R12: 8080808080808080 R13: ffff88810024d02e R14: 0000000000000002 R15: 0000000000000010 FS: 00007f80a38e46c0(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000010 CR3: 0000000113379000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: walk_component fs/namei.c:2003 [inline] link_path_walk+0x286/0x430 fs/namei.c:2324 path_lookupat+0x5f/0x100 fs/namei.c:2477 filename_lookup+0xe5/0x200 fs/namei.c:2507 user_path_at_empty+0x36/0x90 fs/namei.c:2906 user_path_at include/linux/namei.h:57 [inline] do_mount fs/namespace.c:3391 [inline] __do_sys_mount fs/namespace.c:3602 [inline] __se_sys_mount+0x123/0x1b0 fs/namespace.c:3579 __x64_sys_mount+0x20/0x30 fs/namespace.c:3579 x64_sys_call+0x49d/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:166 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f80a2b75ae9 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:00007f80a38e4048 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f80a2d03fa0 RCX: 00007f80a2b75ae9 RDX: 0000000000000000 RSI: 00000000200000c0 RDI: 0000000000000000 RBP: 00007f80a2bf6746 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f80a2d03fa0 R15: 00007fffe8046b88 Modules linked in: CR2: 0000000000000010 ---[ end trace 0000000000000000 ]--- RIP: 0010:traverse_mounts fs/namei.c:1430 [inline] RIP: 0010:handle_mounts fs/namei.c:1542 [inline] RIP: 0010:step_into+0x40/0x2f0 fs/namei.c:1835 Code: f6 48 89 fb 65 48 8b 04 25 28 00 00 00 48 89 45 d0 c6 45 cf 00 48 8b 07 48 89 45 b8 48 89 55 c0 44 8b 47 38 41 f6 c0 40 75 3e <41> 8b 37 f7 c6 00 00 07 00 0f 85 e8 00 00 00 f7 c6 00 00 70 00 75 RSP: 0018:ffffc900008b7c58 EFLAGS: 00010246 RAX: ffff888108cce320 RBX: ffffc900008b7d60 RCX: 0000000000000001 RDX: 0000000000000010 RSI: 0000000000000002 RDI: ffffc900008b7d60 RBP: ffffc900008b7ca8 R08: 0000000000000011 R09: ffffc900008b7ba0 R10: ffff888113378020 R11: ffff888100041400 R12: 8080808080808080 R13: ffff88810024d02e R14: 0000000000000002 R15: 0000000000000010 FS: 00007f80a38e46c0(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000010 CR3: 0000000113379000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: f6 48 89 fb testb $0xfb,-0x77(%rax) 4: 65 48 8b 04 25 28 00 mov %gs:0x28,%rax b: 00 00 d: 48 89 45 d0 mov %rax,-0x30(%rbp) 11: c6 45 cf 00 movb $0x0,-0x31(%rbp) 15: 48 8b 07 mov (%rdi),%rax 18: 48 89 45 b8 mov %rax,-0x48(%rbp) 1c: 48 89 55 c0 mov %rdx,-0x40(%rbp) 20: 44 8b 47 38 mov 0x38(%rdi),%r8d 24: 41 f6 c0 40 test $0x40,%r8b 28: 75 3e jne 0x68 * 2a: 41 8b 37 mov (%r15),%esi <-- trapping instruction 2d: f7 c6 00 00 07 00 test $0x70000,%esi 33: 0f 85 e8 00 00 00 jne 0x121 39: f7 c6 00 00 70 00 test $0x700000,%esi 3f: 75 .byte 0x75