ci2 starts bisection 2025-02-25 06:27:50.940284642 +0000 UTC m=+303513.976713425 bisecting fixing commit since 431fb5556be3d53f57dbb220a14419c2954cc368 building syzkaller on 9ac0fdc66500475f1914254ef369b32d51adbff9 ensuring issue is reproducible on original commit 431fb5556be3d53f57dbb220a14419c2954cc368 testing commit 431fb5556be3d53f57dbb220a14419c2954cc368 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: aa647c728b5c5051c49b9427f493de8bcf5bdc41163aea8fe35fcd10e32953c1 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 431fb5556be3d53f57dbb220a14419c2954cc368 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: f30f7e11bf980061eef767224f4ea244e1d4a1e8f63e7ace1ceb84450a221b61 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 [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed kconfig minimization: base=4920 full=6215 leaves diff=253 split chunks (needed=false): <253> split chunk #0 of len 253 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 431fb5556be3d53f57dbb220a14419c2954cc368 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 6976a0b97f341e6e3d9af0e2e9abdf85e80ed0821336da1c0cb8d1dfcc727cc9 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 [HANG LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit 431fb5556be3d53f57dbb220a14419c2954cc368 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b6dffc7fdb9eebfd8a0089453d470a97c8f7223a28e65e6b2daed4736d4c8577 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 [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed testing commit 431fb5556be3d53f57dbb220a14419c2954cc368 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e7a7c18bb6493ff6299f73a5417717ed9ff337fa588974b5df5761af062c0c75 run #0: crashed: BUG: unable to handle kernel NULL pointer dereference in vfs_rename run #1: crashed: BUG: unable to handle kernel NULL pointer dereference in vfs_rename run #2: crashed: BUG: unable to handle kernel NULL pointer dereference in vfs_rename run #3: crashed: BUG: unable to handle kernel NULL pointer dereference in vfs_rename run #4: crashed: BUG: unable to handle kernel NULL pointer dereference in vfs_rename run #5: crashed: BUG: unable to handle kernel NULL pointer dereference in vfs_rename run #6: crashed: BUG: unable to handle kernel NULL pointer dereference in vfs_rename run #7: crashed: BUG: unable to handle kernel NULL pointer dereference in vfs_rename run #8: crashed: BUG: unable to handle kernel NULL pointer dereference in vfs_rename run #9: crashed: no output from test machine 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 [ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN LOCKDEP], they are not needed testing commit 431fb5556be3d53f57dbb220a14419c2954cc368 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 305312ed2d19df0e0025cc29673a3288e3582ea21a21b4bf2546fad3e53c5568 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 431fb5556be3d53f57dbb220a14419c2954cc368 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 failed building 431fb5556be3d53f57dbb220a14419c2954cc368: net/socket.c:1191: undefined reference to `wext_handle_ioctl' net/socket.c:3390: 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 49 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 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 USB_XHCI_PCI_RENESAS 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 [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed testing current HEAD 7d1f9b5c2ff516f9c97fffe9613799b29ef4946d testing commit 7d1f9b5c2ff516f9c97fffe9613799b29ef4946d gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 92a97952ab9734ef4f530e7e01b849ed5e64ba215fc41ef5ef1817f69e18785b 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: 1h47m9.954103331s (build: 1h7m38.889864758s, test: 36m46.285305388s) crash still not fixed or there were kernel test errors commit msg: Merge branch 'android13-5.15' into android13-5.15-lts 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 1134c8067 P4D 1134c8067 PUD 113489067 PMD 0 Oops: 0000 [#1] PREEMPT SMP CPU: 0 PID: 454 Comm: syz.2.15 Not tainted 5.15.178-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 RIP: 0010:vfs_rename+0x2f/0xad0 fs/namei.c:4721 Code: 57 41 56 41 55 41 54 45 31 e4 53 48 83 c4 80 4c 8b 77 10 65 48 8b 04 25 28 00 00 00 48 89 45 d0 31 c0 4c 8b 6f 28 49 8b 76 30 <49> 8b 45 30 48 89 b5 78 ff ff ff 48 39 c6 48 89 45 90 0f 84 07 01 RSP: 0018:ffffc90000443d58 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: ffff888107db6031 RSI: ffff88811bc2b800 RDI: ffffc90000443e90 RBP: ffffc90000443e00 R08: 0000000000000006 R09: 0000000000000010 R10: ffff88810918dac0 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000010 R14: ffff88810aa6fb60 R15: 00000000ffffffd9 FS: 00007fd8498496c0(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000040 CR3: 0000000100bd9000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: do_renameat2+0x3ad/0x590 fs/namei.c:4985 __do_sys_rename fs/namei.c:5031 [inline] __se_sys_rename fs/namei.c:5029 [inline] __x64_sys_rename+0x40/0x50 fs/namei.c:5029 x64_sys_call+0x744/0x990 arch/x86/include/generated/asm/syscalls_64.h:83 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x33/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7fd849e0bed9 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:00007fd849849058 EFLAGS: 00000246 ORIG_RAX: 0000000000000052 RAX: ffffffffffffffda RBX: 00007fd849fd2160 RCX: 00007fd849e0bed9 RDX: 0000000000000000 RSI: 0000000020000140 RDI: 0000000020000100 RBP: 00007fd849e7fcc8 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000001 R14: 00007fd849fd2160 R15: 00007fff9fcd55a8 Modules linked in: CR2: 0000000000000040 ---[ end trace 9541bd9bb308ff30 ]--- RIP: 0010:vfs_rename+0x2f/0xad0 fs/namei.c:4721 Code: 57 41 56 41 55 41 54 45 31 e4 53 48 83 c4 80 4c 8b 77 10 65 48 8b 04 25 28 00 00 00 48 89 45 d0 31 c0 4c 8b 6f 28 49 8b 76 30 <49> 8b 45 30 48 89 b5 78 ff ff ff 48 39 c6 48 89 45 90 0f 84 07 01 RSP: 0018:ffffc90000443d58 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: ffff888107db6031 RSI: ffff88811bc2b800 RDI: ffffc90000443e90 RBP: ffffc90000443e00 R08: 0000000000000006 R09: 0000000000000010 R10: ffff88810918dac0 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000010 R14: ffff88810aa6fb60 R15: 00000000ffffffd9 FS: 00007fd8498496c0(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000040 CR3: 0000000100bd9000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 57 push %rdi 1: 41 56 push %r14 3: 41 55 push %r13 5: 41 54 push %r12 7: 45 31 e4 xor %r12d,%r12d a: 53 push %rbx b: 48 83 c4 80 add $0xffffffffffffff80,%rsp f: 4c 8b 77 10 mov 0x10(%rdi),%r14 13: 65 48 8b 04 25 28 00 mov %gs:0x28,%rax 1a: 00 00 1c: 48 89 45 d0 mov %rax,-0x30(%rbp) 20: 31 c0 xor %eax,%eax 22: 4c 8b 6f 28 mov 0x28(%rdi),%r13 26: 49 8b 76 30 mov 0x30(%r14),%rsi * 2a: 49 8b 45 30 mov 0x30(%r13),%rax <-- trapping instruction 2e: 48 89 b5 78 ff ff ff mov %rsi,-0x88(%rbp) 35: 48 39 c6 cmp %rax,%rsi 38: 48 89 45 90 mov %rax,-0x70(%rbp) 3c: 0f .byte 0xf 3d: 84 07 test %al,(%rdi) 3f: 01 .byte 0x1