ci2 starts bisection 2024-06-26 09:03:49.534502772 +0000 UTC m=+40759.983287531 bisecting fixing commit since c2ac612610e014cc446137b1f0b3ba1e3bbafc34 building syzkaller on 0b6a67ac4b0dc26f43030c5edd01c9175f13b784 ensuring issue is reproducible on original commit c2ac612610e014cc446137b1f0b3ba1e3bbafc34 testing commit c2ac612610e014cc446137b1f0b3ba1e3bbafc34 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 781bcf5e9b6abee65849d0a03ee63cdad345cac78d3eacb3ca647c08e1ecb8b3 all runs: crashed: general protection fault in path_openat representative crash: general protection fault in path_openat, types: [UNKNOWN] check whether we can drop unnecessary instrumentation disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN], they are not needed testing commit c2ac612610e014cc446137b1f0b3ba1e3bbafc34 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 8605ce61504b4ab7677629f330e677b39891e709d46e25a2237a1f993b7d24f3 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in path_openat representative crash: BUG: unable to handle kernel NULL pointer dereference in path_openat, types: [UNKNOWN] the bug reproduces without the instrumentation disabling configs for [UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed kconfig minimization: base=5179 full=6487 leaves diff=250 split chunks (needed=false): <250> split chunk #0 of len 250 into 5 parts testing without sub-chunk 1/5 disabling configs for [UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed testing commit c2ac612610e014cc446137b1f0b3ba1e3bbafc34 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 38018c2cc7ba026380c8caaa3731b43ac901bcb106a6303c432c989a1c07ec2b all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in path_openat representative crash: BUG: unable to handle kernel NULL pointer dereference in path_openat, 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 c2ac612610e014cc446137b1f0b3ba1e3bbafc34 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b7a2ca3cc3afebbb4112b99ce2e0c43e2515d923d014c47c6af50b839828a46a all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in path_openat representative crash: BUG: unable to handle kernel NULL pointer dereference in path_openat, 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 c2ac612610e014cc446137b1f0b3ba1e3bbafc34 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: c1b99dc24972b155e0acb9d4cdae31162b2f81eaae05c724d9b8aca2d550b645 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in path_openat representative crash: BUG: unable to handle kernel NULL pointer dereference in path_openat, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN LOCKDEP], they are not needed testing commit c2ac612610e014cc446137b1f0b3ba1e3bbafc34 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 3c75db3ec2228463e05ed3889a5954b5177c81ccba1e5eabed90576562469c50 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in path_openat representative crash: BUG: unable to handle kernel NULL pointer dereference in path_openat, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed testing commit c2ac612610e014cc446137b1f0b3ba1e3bbafc34 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 failed building c2ac612610e014cc446137b1f0b3ba1e3bbafc34: net/socket.c:1225: undefined reference to `wext_handle_ioctl' net/socket.c:3420: 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 50 configs; suspects: [HID_ZEROPLUS USB_NET_CDC_MBIM USB_NET_CDC_SUBSET USB_NET_CDC_SUBSET_ENABLE USB_NET_DM9601 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_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_PURELIFI WLAN_VENDOR_RALINK WLAN_VENDOR_REALTEK WLAN_VENDOR_RSI WLAN_VENDOR_SILABS WLAN_VENDOR_ZYDAS X86_X32_ABI ZEROPLUS_FF] disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed testing current HEAD 5747d79ab0b7f24db788196258437441f4cf413e testing commit 5747d79ab0b7f24db788196258437441f4cf413e gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 2e1e59c9a8d7ce0df32e04369acc60c2aa4070fa556f9a891a003733e097bb49 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in path_openat representative crash: BUG: unable to handle kernel NULL pointer dereference in path_openat, types: [UNKNOWN] crash still not fixed/happens on the oldest tested release revisions tested: 7, total time: 57m58.365050526s (build: 27m18.479180858s, test: 28m9.400704405s) crash still not fixed or there were kernel test errors commit msg: ANDROID: Update the ABI symbol list crash: BUG: unable to handle kernel NULL pointer dereference in path_openat BUG: kernel NULL pointer dereference, address: 000000000000000a #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 110e1b067 P4D 110e1b067 PUD 110e17067 PMD 0 Oops: 0000 [#1] PREEMPT SMP CPU: 1 PID: 358 Comm: syz-executor.0 Not tainted 6.1.78-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 RIP: 0010:d_is_miss include/linux/dcache.h:399 [inline] RIP: 0010:d_is_negative include/linux/dcache.h:445 [inline] RIP: 0010:atomic_open fs/namei.c:3362 [inline] RIP: 0010:lookup_open fs/namei.c:3454 [inline] RIP: 0010:open_last_lookups fs/namei.c:3551 [inline] RIP: 0010:path_openat+0x552/0xb60 fs/namei.c:3781 Code: 8b 40 18 75 37 48 83 f8 ff 8b 4d b4 0f 84 6f 01 00 00 48 85 c0 74 13 4c 89 f7 e8 09 d0 00 00 8b 4d b4 48 8b 45 a8 4c 8b 70 18 <41> f6 46 02 70 75 17 41 bd fe ff ff ff e9 95 fe ff ff 4c 39 f0 8b RSP: 0018:ffffc900007d3cc0 EFLAGS: 00010246 RAX: ffff88810b842a00 RBX: 0000000000008000 RCX: 0000000000000000 RDX: 00000000ffffff9c RSI: 0000000300000000 RDI: ffff88810035b900 RBP: ffffc900007d3d58 R08: 0000000000000000 R09: ffffc900007d3c38 R10: ffff888110f008c0 R11: ffff888100041400 R12: ffffc900007d3e98 R13: 0000000000000000 R14: 0000000000000008 R15: ffffc900007d3d68 FS: 00007f0e8956c6c0(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000000000a CR3: 0000000110e0d000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: do_filp_open+0xad/0x150 fs/namei.c:3811 do_sys_openat2+0x8e/0x240 fs/open.c:1341 do_sys_open fs/open.c:1357 [inline] __do_sys_openat fs/open.c:1373 [inline] __se_sys_openat fs/open.c:1368 [inline] __x64_sys_openat+0x79/0xa0 fs/open.c:1368 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f0e8887cae9 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:00007f0e8956c0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007f0e8899bf80 RCX: 00007f0e8887cae9 RDX: 0000000000000000 RSI: 0000000020000000 RDI: ffffffffffffff9c RBP: 00007f0e888c847a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f0e8899bf80 R15: 00007ffdbe7a2738 Modules linked in: CR2: 000000000000000a ---[ end trace 0000000000000000 ]--- RIP: 0010:d_is_miss include/linux/dcache.h:399 [inline] RIP: 0010:d_is_negative include/linux/dcache.h:445 [inline] RIP: 0010:atomic_open fs/namei.c:3362 [inline] RIP: 0010:lookup_open fs/namei.c:3454 [inline] RIP: 0010:open_last_lookups fs/namei.c:3551 [inline] RIP: 0010:path_openat+0x552/0xb60 fs/namei.c:3781 Code: 8b 40 18 75 37 48 83 f8 ff 8b 4d b4 0f 84 6f 01 00 00 48 85 c0 74 13 4c 89 f7 e8 09 d0 00 00 8b 4d b4 48 8b 45 a8 4c 8b 70 18 <41> f6 46 02 70 75 17 41 bd fe ff ff ff e9 95 fe ff ff 4c 39 f0 8b RSP: 0018:ffffc900007d3cc0 EFLAGS: 00010246 RAX: ffff88810b842a00 RBX: 0000000000008000 RCX: 0000000000000000 RDX: 00000000ffffff9c RSI: 0000000300000000 RDI: ffff88810035b900 RBP: ffffc900007d3d58 R08: 0000000000000000 R09: ffffc900007d3c38 R10: ffff888110f008c0 R11: ffff888100041400 R12: ffffc900007d3e98 R13: 0000000000000000 R14: 0000000000000008 R15: ffffc900007d3d68 FS: 00007f0e8956c6c0(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000000000a CR3: 0000000110e0d000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 8b 40 18 mov 0x18(%rax),%eax 3: 75 37 jne 0x3c 5: 48 83 f8 ff cmp $0xffffffffffffffff,%rax 9: 8b 4d b4 mov -0x4c(%rbp),%ecx c: 0f 84 6f 01 00 00 je 0x181 12: 48 85 c0 test %rax,%rax 15: 74 13 je 0x2a 17: 4c 89 f7 mov %r14,%rdi 1a: e8 09 d0 00 00 call 0xd028 1f: 8b 4d b4 mov -0x4c(%rbp),%ecx 22: 48 8b 45 a8 mov -0x58(%rbp),%rax 26: 4c 8b 70 18 mov 0x18(%rax),%r14 * 2a: 41 f6 46 02 70 testb $0x70,0x2(%r14) <-- trapping instruction 2f: 75 17 jne 0x48 31: 41 bd fe ff ff ff mov $0xfffffffe,%r13d 37: e9 95 fe ff ff jmp 0xfffffed1 3c: 4c 39 f0 cmp %r14,%rax 3f: 8b .byte 0x8b