ci2 starts bisection 2024-01-04 05:56:10.47164164 +0000 UTC m=+39246.054068219 bisecting fixing commit since 0e7c7966689d35274446527f520f14e412e270ec building syzkaller on f819d6f7cb99737851dcaaa51f11190138fd48d5 ensuring issue is reproducible on original commit 0e7c7966689d35274446527f520f14e412e270ec testing commit 0e7c7966689d35274446527f520f14e412e270ec gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 606c95321fd08f6bb8b716b1a9304420a39408cde95e5a959f1bd7c6cc0c99ef all runs: crashed: general protection fault in do_rmdir representative crash: general protection fault in do_rmdir, types: [UNKNOWN] check whether we can drop unnecessary instrumentation disabling configs for [BUG KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed testing commit 0e7c7966689d35274446527f520f14e412e270ec gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 360bcd969c74fd73e8c0832e2ae180cdbc304bad3e1bfa8a68f07f043bce01a1 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in do_rmdir representative crash: BUG: unable to handle kernel NULL pointer dereference in do_rmdir, types: [UNKNOWN] the bug reproduces without the instrumentation disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed kconfig minimization: base=4920 full=6161 leaves diff=241 split chunks (needed=false): <241> split chunk #0 of len 241 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 0e7c7966689d35274446527f520f14e412e270ec gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 1c5e73080bf9e0860850089247a809124437b1af7fb3e58c25902662630f7c1c all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in do_rmdir representative crash: BUG: unable to handle kernel NULL pointer dereference in do_rmdir, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN LOCKDEP], they are not needed testing commit 0e7c7966689d35274446527f520f14e412e270ec gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 863ffeff131c8e7a33b24c44dafe5359ac993f91c39421b95e30bc1772fe24e0 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in do_rmdir representative crash: BUG: unable to handle kernel NULL pointer dereference in do_rmdir, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [BUG KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed testing commit 0e7c7966689d35274446527f520f14e412e270ec gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e3bef528175f0ba94607a4adf529da9bbcecd6a004a7e01560283a9d5a99ce55 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in do_rmdir representative crash: BUG: unable to handle kernel NULL pointer dereference in do_rmdir, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [BUG KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed testing commit 0e7c7966689d35274446527f520f14e412e270ec gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 87e52779953d5e22a63dceafdaffca6689b3815aff344305b4b08e193fd22df8 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in do_rmdir representative crash: BUG: unable to handle kernel NULL pointer dereference in do_rmdir, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [HANG LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit 0e7c7966689d35274446527f520f14e412e270ec gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 failed building 0e7c7966689d35274446527f520f14e412e270ec: net/socket.c:1189: undefined reference to `wext_handle_ioctl' net/socket.c:3383: undefined reference to `compat_wext_handle_ioctl' net/core/net-procfs.c:343: undefined reference to `wext_proc_exit' net/core/net-procfs.c:327: undefined reference to `wext_proc_init' minimized to 45 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 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 [ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN LOCKDEP], they are not needed testing current HEAD 1370e896a3b89d5ee8173f520ca2df681ab37404 testing commit 1370e896a3b89d5ee8173f520ca2df681ab37404 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: d87a8b46004fe852802f61e58451b8f2acc4751c2433a02272d4bbc9344f75d6 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in do_rmdir representative crash: BUG: unable to handle kernel NULL pointer dereference in do_rmdir, types: [UNKNOWN] crash still not fixed/happens on the oldest tested release revisions tested: 7, total time: 36m43.262184871s (build: 16m1.155454466s, test: 19m0.955874378s) crash still not fixed or there were kernel test errors commit msg: Revert "mmc: core: add helpers mmc_regulator_enable/disable_vqmmc" crash: BUG: unable to handle kernel NULL pointer dereference in do_rmdir BUG: kernel NULL pointer dereference, address: 0000000000000038 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 101dff067 P4D 101dff067 PUD 1015bf067 PMD 0 Oops: 0000 [#1] PREEMPT SMP CPU: 1 PID: 350 Comm: syz-executor.0 Not tainted 5.15.142-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 RIP: 0010:do_rmdir+0x104/0x1d0 fs/namei.c:4131 Code: 81 c7 a0 00 00 00 e8 6b 97 a9 00 48 8b 75 b8 48 8d 7d c0 44 89 fa e8 ab 8c ff ff 48 3d 00 f0 ff ff 49 89 c0 0f 87 a4 00 00 00 <48> 83 78 30 00 0f 84 83 00 00 00 48 8b 45 b0 48 8b 78 18 48 8b 45 RSP: 0018:ffffc9000040beb8 EFLAGS: 00010203 RAX: 0000000000000008 RBX: 00000000ffffff9c RCX: 0000000400000000 RDX: 0000000000000003 RSI: 0000000300000000 RDI: ffff8881025e4a00 RBP: ffffc9000040bf18 R08: 0000000000000008 R09: 0000000000000064 R10: ffff88810f51fc20 R11: 0000000000000000 R12: 0000000000000000 R13: ffff88810819e000 R14: 0000000000000001 R15: 0000000000000000 FS: 00007f3b123ca6c0(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000038 CR3: 00000001091b3000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __do_sys_rmdir fs/namei.c:4158 [inline] __se_sys_rmdir fs/namei.c:4156 [inline] __x64_sys_rmdir+0x3d/0x60 fs/namei.c:4156 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x61/0xcb RIP: 0033:0x7f3b12847ae9 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:00007f3b123ca0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000054 RAX: ffffffffffffffda RBX: 00007f3b12966f80 RCX: 00007f3b12847ae9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000080 RBP: 00007f3b1289347a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f3b12966f80 R15: 00007ffe33dd68d8 Modules linked in: CR2: 0000000000000038 ---[ end trace c07164d11fc6d4b5 ]--- RIP: 0010:do_rmdir+0x104/0x1d0 fs/namei.c:4131 Code: 81 c7 a0 00 00 00 e8 6b 97 a9 00 48 8b 75 b8 48 8d 7d c0 44 89 fa e8 ab 8c ff ff 48 3d 00 f0 ff ff 49 89 c0 0f 87 a4 00 00 00 <48> 83 78 30 00 0f 84 83 00 00 00 48 8b 45 b0 48 8b 78 18 48 8b 45 RSP: 0018:ffffc9000040beb8 EFLAGS: 00010203 RAX: 0000000000000008 RBX: 00000000ffffff9c RCX: 0000000400000000 RDX: 0000000000000003 RSI: 0000000300000000 RDI: ffff8881025e4a00 RBP: ffffc9000040bf18 R08: 0000000000000008 R09: 0000000000000064 R10: ffff88810f51fc20 R11: 0000000000000000 R12: 0000000000000000 R13: ffff88810819e000 R14: 0000000000000001 R15: 0000000000000000 FS: 00007f3b123ca6c0(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000038 CR3: 00000001091b3000 CR4: 00000000003506a0 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 6b 97 a9 00 call 0xa99776 b: 48 8b 75 b8 mov -0x48(%rbp),%rsi f: 48 8d 7d c0 lea -0x40(%rbp),%rdi 13: 44 89 fa mov %r15d,%edx 16: e8 ab 8c ff ff call 0xffff8cc6 1b: 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax 21: 49 89 c0 mov %rax,%r8 24: 0f 87 a4 00 00 00 ja 0xce * 2a: 48 83 78 30 00 cmpq $0x0,0x30(%rax) <-- trapping instruction 2f: 0f 84 83 00 00 00 je 0xb8 35: 48 8b 45 b0 mov -0x50(%rbp),%rax 39: 48 8b 78 18 mov 0x18(%rax),%rdi 3d: 48 rex.W 3e: 8b .byte 0x8b 3f: 45 rex.RB