ci2 starts bisection 2023-11-29 01:20:13.226994362 +0000 UTC m=+19278.936072493 bisecting fixing commit since a27512601c2d65569fdd5a843246dc8da96b6408 building syzkaller on f757a3234f43deecbf7b1af37101b8ac6dd14cd0 ensuring issue is reproducible on original commit a27512601c2d65569fdd5a843246dc8da96b6408 testing commit a27512601c2d65569fdd5a843246dc8da96b6408 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b0b4b11b93d9ef96897dcc12c86e9a7d76be77b0735e865fd3035cb0f6e300c2 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 [HANG LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit a27512601c2d65569fdd5a843246dc8da96b6408 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: de0ed973da4eb5aa57cdb23d67a6d629c6c447a1c0d7f01f28f45395655a8596 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 [HANG LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed kconfig minimization: base=4789 full=6024 leaves diff=238 split chunks (needed=false): <238> split chunk #0 of len 238 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 a27512601c2d65569fdd5a843246dc8da96b6408 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 9d18f7ef4d47e685cc047e51631efea2cf89db7d76dc03f631d159b80c84c974 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 a27512601c2d65569fdd5a843246dc8da96b6408 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 088068edb3591707b6751e94def558093516eda8a1130345945f6e73bce1ed81 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 [HANG LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit a27512601c2d65569fdd5a843246dc8da96b6408 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: d1097c04ba7c5f3f69e69054cfb523fabb8edfebc327b58f308dd93072d62799 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 a27512601c2d65569fdd5a843246dc8da96b6408 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 274cee8a794c8ac13cebd345ce4d94a6d2703a63808a01522bb395ef23bc851e 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 [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed testing commit a27512601c2d65569fdd5a843246dc8da96b6408 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 failed building a27512601c2d65569fdd5a843246dc8da96b6408: net/socket.c:1109: undefined reference to `wext_handle_ioctl' net/socket.c:3378: 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 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 [HANG LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing current HEAD be0b36498b49e50de89d7b548323e1b8c77fc00a testing commit be0b36498b49e50de89d7b548323e1b8c77fc00a gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 9e07ae23844e128bc41f585fe60854bde493c7d0010abe4645d3f15b795b2366 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: 55m24.359389426s (build: 24m18.581376223s, test: 22m54.288600225s) crash still not fixed or there were kernel test errors commit msg: ANDROID: fix up rpmsg_device ABI break 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 11056b067 P4D 11056b067 PUD 1105ed067 PMD 0 Oops: 0000 [#1] PREEMPT SMP CPU: 1 PID: 343 Comm: syz-executor.0 Not tainted 5.10.200-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 RIP: 0010:vfs_rename+0x1b/0x9d0 fs/namei.c:4376 Code: 85 c0 0f 94 45 a3 e9 c5 f8 ff ff 0f 1f 40 00 55 45 31 d2 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 ec 78 4c 89 85 70 ff ff ff <4c> 8b 71 30 44 89 4d 90 65 48 8b 04 25 28 00 00 00 48 89 45 d0 48 RSP: 0018:ffffc900005efdb0 EFLAGS: 00010282 RAX: ffff888108c90a90 RBX: 0000000000000000 RCX: 0000000000000010 RDX: ffff888109f7d400 RSI: ffff888109d60d00 RDI: ffff888109f7d400 RBP: ffffc900005efe50 R08: ffffc900005efe98 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000010 R12: 0000000000000000 R13: 00000000ffffffd9 R14: ffff888109d60d00 R15: ffff888107f8c000 FS: 00007f82b25e46c0(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000040 CR3: 000000011055d000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: do_renameat2+0x33f/0x4f0 fs/namei.c:4605 __do_sys_rename fs/namei.c:4656 [inline] __se_sys_rename fs/namei.c:4654 [inline] __x64_sys_rename+0x40/0x50 fs/namei.c:4654 do_syscall_64+0x32/0x80 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x61/0xc6 RIP: 0033:0x7f82b2a61ae9 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:00007f82b25e40c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000052 RAX: ffffffffffffffda RBX: 00007f82b2b80f80 RCX: 00007f82b2a61ae9 RDX: 0000000000000000 RSI: 0000000020000140 RDI: 0000000020000100 RBP: 00007f82b2aad47a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f82b2b80f80 R15: 00007ffc09c504e8 Modules linked in: CR2: 0000000000000040 ---[ end trace f77adeb1be44fd38 ]--- RIP: 0010:vfs_rename+0x1b/0x9d0 fs/namei.c:4376 Code: 85 c0 0f 94 45 a3 e9 c5 f8 ff ff 0f 1f 40 00 55 45 31 d2 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 ec 78 4c 89 85 70 ff ff ff <4c> 8b 71 30 44 89 4d 90 65 48 8b 04 25 28 00 00 00 48 89 45 d0 48 RSP: 0018:ffffc900005efdb0 EFLAGS: 00010282 RAX: ffff888108c90a90 RBX: 0000000000000000 RCX: 0000000000000010 RDX: ffff888109f7d400 RSI: ffff888109d60d00 RDI: ffff888109f7d400 RBP: ffffc900005efe50 R08: ffffc900005efe98 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000010 R12: 0000000000000000 R13: 00000000ffffffd9 R14: ffff888109d60d00 R15: ffff888107f8c000 FS: 00007f82b25e46c0(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000040 CR3: 000000011055d000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 85 c0 test %eax,%eax 2: 0f 94 45 a3 sete -0x5d(%rbp) 6: e9 c5 f8 ff ff jmp 0xfffff8d0 b: 0f 1f 40 00 nopl 0x0(%rax) f: 55 push %rbp 10: 45 31 d2 xor %r10d,%r10d 13: 48 89 e5 mov %rsp,%rbp 16: 41 57 push %r15 18: 41 56 push %r14 1a: 41 55 push %r13 1c: 41 54 push %r12 1e: 53 push %rbx 1f: 48 83 ec 78 sub $0x78,%rsp 23: 4c 89 85 70 ff ff ff mov %r8,-0x90(%rbp) * 2a: 4c 8b 71 30 mov 0x30(%rcx),%r14 <-- trapping instruction 2e: 44 89 4d 90 mov %r9d,-0x70(%rbp) 32: 65 48 8b 04 25 28 00 mov %gs:0x28,%rax 39: 00 00 3b: 48 89 45 d0 mov %rax,-0x30(%rbp) 3f: 48 rex.W