ci2 starts bisection 2025-02-19 06:30:06.56436467 +0000 UTC m=+30188.136476328 bisecting fixing commit since e2b9748880b939d8d99877b72cc4cc42951d49b6 building syzkaller on f3558dbf032eab2b77c1cb11b9ce2baffe7838d3 ensuring issue is reproducible on original commit e2b9748880b939d8d99877b72cc4cc42951d49b6 testing commit e2b9748880b939d8d99877b72cc4cc42951d49b6 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 74acfaa9cf4eb8c4e12097abe661103d00dea88dffe7b72e17a35ca192855fec 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 [BUG KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed testing commit e2b9748880b939d8d99877b72cc4cc42951d49b6 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: d18cbd7f5ba71c448f83c9262695d248dc6a84b9d125d3db5a9d37be0d03e75d 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 [ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN LOCKDEP], they are not needed kconfig minimization: base=5179 full=6548 leaves diff=264 split chunks (needed=false): <264> split chunk #0 of len 264 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 e2b9748880b939d8d99877b72cc4cc42951d49b6 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e735b36c094e0d419fa990cd0094823de3441bbabce74b23c69f7852c15e1100 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 [HANG LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit e2b9748880b939d8d99877b72cc4cc42951d49b6 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: cc982b867731b4d73c9009adf4a91dd6c5126d74f56f602ef64c272b9f0c302c 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 e2b9748880b939d8d99877b72cc4cc42951d49b6 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: c5b82e9c0b14e0f2ccc9cbc2c033f81d4c7b02b1c915e16d64654359fb0aaa65 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 [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP HANG], they are not needed testing commit e2b9748880b939d8d99877b72cc4cc42951d49b6 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 2affcdec5d657b75859fa62dfc050009952ca9223c5dddfe8e7bb3a05a361fa4 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 [HANG LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit e2b9748880b939d8d99877b72cc4cc42951d49b6 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 failed building e2b9748880b939d8d99877b72cc4cc42951d49b6: net/socket.c:1245: undefined reference to `wext_handle_ioctl' net/socket.c:3447: 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 52 configs; suspects: [HID_ZEROPLUS 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 V4L2_ASYNC V4L2_FWNODE VIDEO_CAMERA_SENSOR 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 [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed testing current HEAD a5f88b6529479f8f962494838ed261acc16c64c4 testing commit a5f88b6529479f8f962494838ed261acc16c64c4 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: ebd4870e5881ae66d9528380be4d5521cf8edd03c75a18e509c077681a992905 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: 46m23.41714989s (build: 21m41.474857412s, test: 21m20.297216775s) crash still not fixed or there were kernel test errors commit msg: UPSTREAM: f2fs: Optimize f2fs_truncate_data_blocks_range() crash: BUG: unable to handle kernel NULL pointer dereference in do_unlinkat BUG: kernel NULL pointer dereference, address: 000000000000003a #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 10f469067 P4D 10f469067 PUD 10e3df067 PMD 0 Oops: 0000 [#1] PREEMPT SMP CPU: 1 PID: 454 Comm: syz.2.16 Not tainted 6.1.124-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 RIP: 0010:do_unlinkat+0x1a1/0x2d0 fs/namei.c:4381 Code: a9 00 00 70 00 74 53 25 00 00 60 00 31 c9 3d 00 00 20 00 0f 94 c1 41 be ec ff ff ff 41 29 ce 45 31 ed eb 47 41 bf a0 00 00 00 <4c> 8b 6b 30 f6 43 02 70 4c 8b 75 90 74 2d 4c 89 ef e8 99 f7 00 00 RSP: 0018:ffffc90000913e80 EFLAGS: 00010246 RAX: ffff8881009ce028 RBX: 000000000000000a RCX: 0000000000000005 RDX: 00000000ffffff9c RSI: 0000000300000000 RDI: ffff88810f445f00 RBP: ffffc90000913f00 R08: ffff88810c71cd80 R09: ffffffff8154d474 R10: ffff888100041400 R11: ffff88810c71cd80 R12: ffff88810b6a2340 R13: ffffc90000913eb0 R14: 00000000000000a0 R15: 00000000000000a0 FS: 00007f700af786c0(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000000003a CR3: 000000010c4b6000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __do_sys_unlink fs/namei.c:4437 [inline] __se_sys_unlink fs/namei.c:4435 [inline] __x64_sys_unlink+0x1e/0x30 fs/namei.c:4435 x64_sys_call+0x289/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:88 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f700a185d29 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:00007f700af78038 EFLAGS: 00000246 ORIG_RAX: 0000000000000057 RAX: ffffffffffffffda RBX: 00007f700a376080 RCX: 00007f700a185d29 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000100 RBP: 00007f700a201b08 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f700a376080 R15: 00007fff2c20f3b8 Modules linked in: CR2: 000000000000003a ---[ end trace 0000000000000000 ]--- RIP: 0010:do_unlinkat+0x1a1/0x2d0 fs/namei.c:4381 Code: a9 00 00 70 00 74 53 25 00 00 60 00 31 c9 3d 00 00 20 00 0f 94 c1 41 be ec ff ff ff 41 29 ce 45 31 ed eb 47 41 bf a0 00 00 00 <4c> 8b 6b 30 f6 43 02 70 4c 8b 75 90 74 2d 4c 89 ef e8 99 f7 00 00 RSP: 0018:ffffc90000913e80 EFLAGS: 00010246 RAX: ffff8881009ce028 RBX: 000000000000000a RCX: 0000000000000005 RDX: 00000000ffffff9c RSI: 0000000300000000 RDI: ffff88810f445f00 RBP: ffffc90000913f00 R08: ffff88810c71cd80 R09: ffffffff8154d474 R10: ffff888100041400 R11: ffff88810c71cd80 R12: ffff88810b6a2340 R13: ffffc90000913eb0 R14: 00000000000000a0 R15: 00000000000000a0 FS: 00007f700af786c0(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000000003a CR3: 000000010c4b6000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: a9 00 00 70 00 test $0x700000,%eax 5: 74 53 je 0x5a 7: 25 00 00 60 00 and $0x600000,%eax c: 31 c9 xor %ecx,%ecx e: 3d 00 00 20 00 cmp $0x200000,%eax 13: 0f 94 c1 sete %cl 16: 41 be ec ff ff ff mov $0xffffffec,%r14d 1c: 41 29 ce sub %ecx,%r14d 1f: 45 31 ed xor %r13d,%r13d 22: eb 47 jmp 0x6b 24: 41 bf a0 00 00 00 mov $0xa0,%r15d * 2a: 4c 8b 6b 30 mov 0x30(%rbx),%r13 <-- trapping instruction 2e: f6 43 02 70 testb $0x70,0x2(%rbx) 32: 4c 8b 75 90 mov -0x70(%rbp),%r14 36: 74 2d je 0x65 38: 4c 89 ef mov %r13,%rdi 3b: e8 99 f7 00 00 call 0xf7d9