ci2 starts bisection 2023-11-20 16:39:21.008037289 +0000 UTC m=+599028.116068052 bisecting fixing commit since d3212c2dbababf849d940f5f7001f4fde222b888 building syzkaller on 0b6a67ac4b0dc26f43030c5edd01c9175f13b784 ensuring issue is reproducible on original commit d3212c2dbababf849d940f5f7001f4fde222b888 testing commit d3212c2dbababf849d940f5f7001f4fde222b888 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 6adbfbaa6fd3fd7d0e9947caa0c9fa4c937c824e4b403a06a2b3cb41090680b4 all runs: crashed: general protection fault in do_renameat2 representative crash: general protection fault in do_renameat2, types: [UNKNOWN] check whether we can drop unnecessary instrumentation disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN LOCKDEP], they are not needed testing commit d3212c2dbababf849d940f5f7001f4fde222b888 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 72929cb1bda486cd9c65938e924cc69bc246ca1b5aeb2ea7f02dcb03eb50ec40 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in do_renameat2 representative crash: BUG: unable to handle kernel NULL pointer dereference in do_renameat2, 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 [BUG KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed testing commit d3212c2dbababf849d940f5f7001f4fde222b888 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: c75fa6259c4453d19ae31d924ecc0df80ecf5936c77f2211b876bbf51a43847f all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in do_renameat2 representative crash: BUG: unable to handle kernel NULL pointer dereference in do_renameat2, 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 d3212c2dbababf849d940f5f7001f4fde222b888 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 685bb487f28de521235dd5fbae56c7098ead3d51d7d4c29e6dca471d58243945 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in do_renameat2 representative crash: BUG: unable to handle kernel NULL pointer dereference in do_renameat2, 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 d3212c2dbababf849d940f5f7001f4fde222b888 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 05ca9e1af0d3728fffb419f0656adb676612634181a3e0d0d1df6cab1a969a98 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in do_renameat2 representative crash: BUG: unable to handle kernel NULL pointer dereference in do_renameat2, 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 d3212c2dbababf849d940f5f7001f4fde222b888 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 130556b7176a35e49c26bf74e94f599de9c3df232a67107ae39f8ea62bbd8e1f all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in do_renameat2 representative crash: BUG: unable to handle kernel NULL pointer dereference in do_renameat2, 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 d3212c2dbababf849d940f5f7001f4fde222b888 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 failed building d3212c2dbababf849d940f5f7001f4fde222b888: 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 [HANG LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing current HEAD daa7a3d95d3992597ffc11035782e1a44264ad4a testing commit daa7a3d95d3992597ffc11035782e1a44264ad4a gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b9596912473dcf0c5949ffff7f2f9ed3d08b7b7fb3a9c9a175a6e5a3a870d334 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in do_renameat2 representative crash: BUG: unable to handle kernel NULL pointer dereference in do_renameat2, types: [UNKNOWN] crash still not fixed/happens on the oldest tested release revisions tested: 7, total time: 1h4m27.491134583s (build: 19m57.516015732s, test: 19m36.325114715s) crash still not fixed or there were kernel test errors commit msg: ANDROID: KVM: arm64: mount procfs for pKVM module loading crash: BUG: unable to handle kernel NULL pointer dereference in do_renameat2 BUG: kernel NULL pointer dereference, address: 0000000000000012 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 113959067 P4D 113959067 PUD 113952067 PMD 0 Oops: 0000 [#1] PREEMPT SMP CPU: 0 PID: 354 Comm: syz-executor.0 Not tainted 6.1.43-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 RIP: 0010:d_is_miss include/linux/dcache.h:399 [inline] RIP: 0010:d_is_negative include/linux/dcache.h:445 [inline] RIP: 0010:do_renameat2+0x2f0/0x600 fs/namei.c:4884 Code: ee e8 04 ba ff ff 48 89 c3 48 8d bd 60 ff ff ff 4c 89 ee 44 89 e2 e8 0f e2 ff ff 49 89 c7 48 3d 00 f0 ff ff 0f 87 7b 01 00 00 <41> f6 47 02 70 48 8b b5 30 ff ff ff 0f 84 09 01 00 00 48 89 9d 00 RSP: 0018:ffffc90000777de8 EFLAGS: 00010203 RAX: 0000000000000010 RBX: 0000000000000000 RCX: 0000000000000004 RDX: 0000000400000000 RSI: 0000000000000000 RDI: ffff888108ce2600 RBP: ffffc90000777f00 R08: 00000000ffffff9c R09: ffffffff8153e49c R10: ffff88810bbb7c00 R11: ffff888100041400 R12: 0000000000000000 R13: ffff88810c3424e0 R14: 0000000020000101 R15: 0000000000000010 FS: 00007f03701976c0(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000012 CR3: 000000010bb7e000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __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: 0033:0x7f036f47cae9 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:00007f03701970c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000052 RAX: ffffffffffffffda RBX: 00007f036f59bf80 RCX: 00007f036f47cae9 RDX: 0000000000000000 RSI: 0000000020000140 RDI: 0000000020000100 RBP: 00007f036f4c847a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f036f59bf80 R15: 00007ffef1960c98 Modules linked in: CR2: 0000000000000012 ---[ 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:do_renameat2+0x2f0/0x600 fs/namei.c:4884 Code: ee e8 04 ba ff ff 48 89 c3 48 8d bd 60 ff ff ff 4c 89 ee 44 89 e2 e8 0f e2 ff ff 49 89 c7 48 3d 00 f0 ff ff 0f 87 7b 01 00 00 <41> f6 47 02 70 48 8b b5 30 ff ff ff 0f 84 09 01 00 00 48 89 9d 00 RSP: 0018:ffffc90000777de8 EFLAGS: 00010203 RAX: 0000000000000010 RBX: 0000000000000000 RCX: 0000000000000004 RDX: 0000000400000000 RSI: 0000000000000000 RDI: ffff888108ce2600 RBP: ffffc90000777f00 R08: 00000000ffffff9c R09: ffffffff8153e49c R10: ffff88810bbb7c00 R11: ffff888100041400 R12: 0000000000000000 R13: ffff88810c3424e0 R14: 0000000020000101 R15: 0000000000000010 FS: 00007f03701976c0(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000012 CR3: 000000010bb7e000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: ee out %al,(%dx) 1: e8 04 ba ff ff call 0xffffba0a 6: 48 89 c3 mov %rax,%rbx 9: 48 8d bd 60 ff ff ff lea -0xa0(%rbp),%rdi 10: 4c 89 ee mov %r13,%rsi 13: 44 89 e2 mov %r12d,%edx 16: e8 0f e2 ff ff call 0xffffe22a 1b: 49 89 c7 mov %rax,%r15 1e: 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax 24: 0f 87 7b 01 00 00 ja 0x1a5 * 2a: 41 f6 47 02 70 testb $0x70,0x2(%r15) <-- trapping instruction 2f: 48 8b b5 30 ff ff ff mov -0xd0(%rbp),%rsi 36: 0f 84 09 01 00 00 je 0x145 3c: 48 rex.W 3d: 89 .byte 0x89 3e: 9d popf