ci2 starts bisection 2024-01-22 08:50:03.872260141 +0000 UTC m=+237105.407696760 bisecting fixing commit since 53771c1826da1344a90810469ad8e30ccaa0c00a building syzkaller on 361b23dca53619ee1dfd92dd6a74a7f3e58f270c ensuring issue is reproducible on original commit 53771c1826da1344a90810469ad8e30ccaa0c00a testing commit 53771c1826da1344a90810469ad8e30ccaa0c00a gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: a4a0299cdc2669c98844fb88917e4c629197fe49ef410ec65617e8baef5256d5 all runs: crashed: general protection fault in vfs_rename representative crash: general protection fault in vfs_rename, 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 53771c1826da1344a90810469ad8e30ccaa0c00a gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 6fdc233286227a0b9f61dab39d82eea270a79f1ce23d1da4e06cde5559361490 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in vfs_rename representative crash: BUG: unable to handle kernel NULL pointer dereference in vfs_rename, types: [UNKNOWN] the bug reproduces without the instrumentation disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP HANG], they are not needed kconfig minimization: base=5179 full=6485 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 [ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN LOCKDEP], they are not needed testing commit 53771c1826da1344a90810469ad8e30ccaa0c00a gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 86a813828a5de05d1f47121fcf2c3ec769a69ca35eb85a9b0afb35b0e39d1e5c all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in vfs_rename representative crash: BUG: unable to handle kernel NULL pointer dereference in vfs_rename, 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 53771c1826da1344a90810469ad8e30ccaa0c00a gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 0df00bca346ada49bbdc9e0f17f4130afbfdf6d1afb3dc1a462a6901f46a9f1b all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in vfs_rename representative crash: BUG: unable to handle kernel NULL pointer dereference in vfs_rename, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN], they are not needed testing commit 53771c1826da1344a90810469ad8e30ccaa0c00a gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 26e94912e5d85d2299a93520c16cd3bd66d4758295821885566144d54e840ae7 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in vfs_rename representative crash: BUG: unable to handle kernel NULL pointer dereference in vfs_rename, 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 53771c1826da1344a90810469ad8e30ccaa0c00a gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 388c4816aa3f25a0ae6be2fc7031c3309d45f8c9e99e41bba5a252b14ea3782e all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in vfs_rename representative crash: BUG: unable to handle kernel NULL pointer dereference in vfs_rename, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed testing commit 53771c1826da1344a90810469ad8e30ccaa0c00a gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 failed building 53771c1826da1344a90810469ad8e30ccaa0c00a: 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 [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN], they are not needed testing current HEAD aba5a3fe094e43a7aa8adc5c09a131ef8c9ccfde testing commit aba5a3fe094e43a7aa8adc5c09a131ef8c9ccfde gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: c16f8f018cdbe02cecd214c84ef2e4d37c718cb5ded258eb3b6d89b75ff49adf all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in vfs_rename representative crash: BUG: unable to handle kernel NULL pointer dereference in vfs_rename, types: [UNKNOWN] crash still not fixed/happens on the oldest tested release revisions tested: 7, total time: 55m17.336541967s (build: 24m42.008979043s, test: 27m33.815369236s) crash still not fixed or there were kernel test errors commit msg: ANDROID: Enable CONFIG_LAZY_RCU in x86 gki_defconfig crash: BUG: unable to handle kernel NULL pointer dereference in vfs_rename BUG: kernel NULL pointer dereference, address: 0000000000000040 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 115c3a067 P4D 115c3a067 PUD 115c3e067 PMD 0 Oops: 0000 [#1] PREEMPT SMP CPU: 1 PID: 353 Comm: syz-executor.0 Not tainted 6.1.57-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 RIP: 0010:vfs_rename+0x45/0x570 fs/namei.c:4692 Code: 00 00 48 89 45 d0 4c 8b 47 08 4c 8b 7f 10 48 8b 4f 20 48 8b 77 28 4c 8b 4f 30 41 bd 00 00 60 00 45 23 2f 8b 57 38 49 8b 5f 30 <48> 8b 7e 30 48 8b 41 28 8b 80 28 04 00 00 48 c7 45 c8 00 00 00 00 RSP: 0018:ffffc900006efd38 EFLAGS: 00010206 RAX: 5630d185c8d96a00 RBX: ffff88810abd7840 RCX: ffff88810abd61c0 RDX: 0000000000000000 RSI: 0000000000000010 RDI: ffffc900006efe90 RBP: ffffc900006efdd8 R08: ffff88810abd61c0 R09: ffffc900006efe40 R10: ffff888115c25980 R11: ffff888100041400 R12: ffffc900006efe90 R13: 0000000000400000 R14: 0000000020000101 R15: ffff88810d10f410 FS: 00007f20a4b946c0(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000040 CR3: 0000000115c2b000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: do_renameat2+0x404/0x600 fs/namei.c:4935 __do_sys_rename fs/namei.c:4981 [inline] __se_sys_rename fs/namei.c:4979 [inline] __x64_sys_rename+0x3f/0x50 fs/namei.c:4979 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f20a3e7cae9 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:00007f20a4b940c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000052 RAX: ffffffffffffffda RBX: 00007f20a3f9bf80 RCX: 00007f20a3e7cae9 RDX: 0000000000000000 RSI: 0000000020000140 RDI: 0000000020000100 RBP: 00007f20a3ec847a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f20a3f9bf80 R15: 00007ffc523a3068 Modules linked in: CR2: 0000000000000040 ---[ end trace 0000000000000000 ]--- RIP: 0010:vfs_rename+0x45/0x570 fs/namei.c:4692 Code: 00 00 48 89 45 d0 4c 8b 47 08 4c 8b 7f 10 48 8b 4f 20 48 8b 77 28 4c 8b 4f 30 41 bd 00 00 60 00 45 23 2f 8b 57 38 49 8b 5f 30 <48> 8b 7e 30 48 8b 41 28 8b 80 28 04 00 00 48 c7 45 c8 00 00 00 00 RSP: 0018:ffffc900006efd38 EFLAGS: 00010206 RAX: 5630d185c8d96a00 RBX: ffff88810abd7840 RCX: ffff88810abd61c0 RDX: 0000000000000000 RSI: 0000000000000010 RDI: ffffc900006efe90 RBP: ffffc900006efdd8 R08: ffff88810abd61c0 R09: ffffc900006efe40 R10: ffff888115c25980 R11: ffff888100041400 R12: ffffc900006efe90 R13: 0000000000400000 R14: 0000000020000101 R15: ffff88810d10f410 FS: 00007f20a4b946c0(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000040 CR3: 0000000115c2b000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 00 00 add %al,(%rax) 2: 48 89 45 d0 mov %rax,-0x30(%rbp) 6: 4c 8b 47 08 mov 0x8(%rdi),%r8 a: 4c 8b 7f 10 mov 0x10(%rdi),%r15 e: 48 8b 4f 20 mov 0x20(%rdi),%rcx 12: 48 8b 77 28 mov 0x28(%rdi),%rsi 16: 4c 8b 4f 30 mov 0x30(%rdi),%r9 1a: 41 bd 00 00 60 00 mov $0x600000,%r13d 20: 45 23 2f and (%r15),%r13d 23: 8b 57 38 mov 0x38(%rdi),%edx 26: 49 8b 5f 30 mov 0x30(%r15),%rbx * 2a: 48 8b 7e 30 mov 0x30(%rsi),%rdi <-- trapping instruction 2e: 48 8b 41 28 mov 0x28(%rcx),%rax 32: 8b 80 28 04 00 00 mov 0x428(%rax),%eax 38: 48 c7 45 c8 00 00 00 movq $0x0,-0x38(%rbp) 3f: 00