ci2 starts bisection 2025-01-28 23:39:30.543570665 +0000 UTC m=+40785.534655991 bisecting fixing commit since e5e5644ea27f86a29c84df744a01ea7de65ef800 building syzkaller on 0d144d1a990dd507ca7c595b21a5fa13d22161a0 ensuring issue is reproducible on original commit e5e5644ea27f86a29c84df744a01ea7de65ef800 testing commit e5e5644ea27f86a29c84df744a01ea7de65ef800 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 0efe4ba6c2ad6cb235184224a2e1b0fb29fa8a6067b1026819e0de5c2dc497b3 all runs: crashed: general protection fault in do_unlinkat representative crash: general protection fault in do_unlinkat, types: [UNKNOWN] check whether we can drop unnecessary instrumentation disabling configs for [HANG LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit e5e5644ea27f86a29c84df744a01ea7de65ef800 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 2c4590c06526d2c8d1ce053f0fa83a32c1ba08a5f28a539dc9798977794d4698 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in do_unlinkat representative crash: BUG: unable to handle kernel NULL pointer dereference in do_unlinkat, types: [UNKNOWN] the bug reproduces without the instrumentation disabling configs for [HANG LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed kconfig minimization: base=4789 full=6020 leaves diff=243 split chunks (needed=false): <243> split chunk #0 of len 243 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 e5e5644ea27f86a29c84df744a01ea7de65ef800 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: de7a90c75f9e3d5261611651d0234b84e6a7e307b651295b6f6944fadae2fb8f all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in do_unlinkat representative crash: BUG: unable to handle kernel NULL pointer dereference in do_unlinkat, 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 e5e5644ea27f86a29c84df744a01ea7de65ef800 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: d9373d10ec018746d3aa13fa9d2ee5c83e5dbdb023b89e1c0e89a5a7c8d9875f all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in do_unlinkat representative crash: BUG: unable to handle kernel NULL pointer dereference in do_unlinkat, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP HANG], they are not needed testing commit e5e5644ea27f86a29c84df744a01ea7de65ef800 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 9d7864d756f3e1138b3f1d36a26a8c53167b806aa8e17d9e6667b998de1664ba all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in do_unlinkat representative crash: BUG: unable to handle kernel NULL pointer dereference in do_unlinkat, 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 e5e5644ea27f86a29c84df744a01ea7de65ef800 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 5a65e944454de3a8d8f11164e5ac6da2852a06e2eebae4baa1100bd42e353a92 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in do_unlinkat representative crash: BUG: unable to handle kernel NULL pointer dereference in do_unlinkat, 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 e5e5644ea27f86a29c84df744a01ea7de65ef800 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 failed building e5e5644ea27f86a29c84df744a01ea7de65ef800: net/socket.c:1128: undefined reference to `wext_handle_ioctl' net/socket.c:3397: undefined reference to `compat_wext_handle_ioctl' net/core/net-procfs.c:346: undefined reference to `wext_proc_exit' net/core/net-procfs.c:330: undefined reference to `wext_proc_init' minimized to 47 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 USB_XHCI_PCI_RENESAS 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 fbe98d68b6b391887a690d6f212fdc2ff29f1eb7 testing commit fbe98d68b6b391887a690d6f212fdc2ff29f1eb7 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 26447b9c8071d792fed2b3adb2bd536e75cc87bb3ec9f00cea255b1c4a508e7c all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in do_unlinkat representative crash: BUG: unable to handle kernel NULL pointer dereference in do_unlinkat, types: [UNKNOWN] crash still not fixed/happens on the oldest tested release revisions tested: 7, total time: 53m10.517190387s (build: 26m49.479958813s, test: 24m11.66667425s) crash still not fixed or there were kernel test errors commit msg: ANDROID: GKI: virtual_device: add blk_mq_quiesce_queue_nowait to the symbol list crash: BUG: unable to handle kernel NULL pointer dereference in do_unlinkat BUG: kernel NULL pointer dereference, address: 000000000000000a #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 11729c067 P4D 11729c067 PUD 1172a0067 PMD 0 Oops: 0000 [#1] PREEMPT SMP CPU: 0 PID: 475 Comm: syz.0.15 Not tainted 5.10.233-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 RIP: 0010:__d_entry_type include/linux/dcache.h:400 [inline] RIP: 0010:d_is_miss include/linux/dcache.h:405 [inline] RIP: 0010:d_is_negative include/linux/dcache.h:451 [inline] RIP: 0010:do_unlinkat+0x13f/0x2b0 fs/namei.c:4030 Code: 81 c7 a0 00 00 00 e8 00 52 a2 00 48 8b 75 b8 48 8d 7d c0 44 89 ea e8 60 90 ff ff 48 3d 00 f0 ff ff 49 89 c7 0f 87 34 01 00 00 <8b> 00 8b 4d c4 48 8b 75 c8 89 c2 81 e2 00 00 70 00 80 3c 0e 00 0f RSP: 0018:ffffc90000773eb0 EFLAGS: 00010207 RAX: 000000000000000a RBX: 0000000000000000 RCX: 0000000400000000 RDX: 0000000000000003 RSI: 0000000300000000 RDI: ffff8881003e4a00 RBP: ffffc90000773f18 R08: 0000000000000004 R09: 0000000000000064 R10: ffff88810b095280 R11: 0000000000000000 R12: ffff888107f98000 R13: 0000000000000000 R14: 0000000000000000 R15: 000000000000000a FS: 00007fa17aefd6c0(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000000000a CR3: 00000001170ae000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __do_sys_unlink fs/namei.c:4082 [inline] __se_sys_unlink fs/namei.c:4080 [inline] __x64_sys_unlink+0x3d/0x60 fs/namei.c:4080 do_syscall_64+0x32/0x80 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x61/0xcb RIP: 0033:0x7fa17b49cff9 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:00007fa17aefd038 EFLAGS: 00000246 ORIG_RAX: 0000000000000057 RAX: ffffffffffffffda RBX: 00007fa17b655058 RCX: 00007fa17b49cff9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000100 RBP: 00007fa17b50f296 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fa17b655058 R15: 00007ffdd1ad5518 Modules linked in: CR2: 000000000000000a ---[ end trace 047c0e81f1baccb1 ]--- RIP: 0010:__d_entry_type include/linux/dcache.h:400 [inline] RIP: 0010:d_is_miss include/linux/dcache.h:405 [inline] RIP: 0010:d_is_negative include/linux/dcache.h:451 [inline] RIP: 0010:do_unlinkat+0x13f/0x2b0 fs/namei.c:4030 Code: 81 c7 a0 00 00 00 e8 00 52 a2 00 48 8b 75 b8 48 8d 7d c0 44 89 ea e8 60 90 ff ff 48 3d 00 f0 ff ff 49 89 c7 0f 87 34 01 00 00 <8b> 00 8b 4d c4 48 8b 75 c8 89 c2 81 e2 00 00 70 00 80 3c 0e 00 0f RSP: 0018:ffffc90000773eb0 EFLAGS: 00010207 RAX: 000000000000000a RBX: 0000000000000000 RCX: 0000000400000000 RDX: 0000000000000003 RSI: 0000000300000000 RDI: ffff8881003e4a00 RBP: ffffc90000773f18 R08: 0000000000000004 R09: 0000000000000064 R10: ffff88810b095280 R11: 0000000000000000 R12: ffff888107f98000 R13: 0000000000000000 R14: 0000000000000000 R15: 000000000000000a FS: 00007fa17aefd6c0(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000000000a CR3: 00000001170ae000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 81 c7 a0 00 00 00 add $0xa0,%edi 6: e8 00 52 a2 00 call 0xa2520b b: 48 8b 75 b8 mov -0x48(%rbp),%rsi f: 48 8d 7d c0 lea -0x40(%rbp),%rdi 13: 44 89 ea mov %r13d,%edx 16: e8 60 90 ff ff call 0xffff907b 1b: 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax 21: 49 89 c7 mov %rax,%r15 24: 0f 87 34 01 00 00 ja 0x15e * 2a: 8b 00 mov (%rax),%eax <-- trapping instruction 2c: 8b 4d c4 mov -0x3c(%rbp),%ecx 2f: 48 8b 75 c8 mov -0x38(%rbp),%rsi 33: 89 c2 mov %eax,%edx 35: 81 e2 00 00 70 00 and $0x700000,%edx 3b: 80 3c 0e 00 cmpb $0x0,(%rsi,%rcx,1) 3f: 0f .byte 0xf