ci2 starts bisection 2024-01-05 03:50:05.975301915 +0000 UTC m=+118081.557728504 bisecting fixing commit since a27512601c2d65569fdd5a843246dc8da96b6408 building syzkaller on 0b6a67ac4b0dc26f43030c5edd01c9175f13b784 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: d86da48e39667b666297253975735e906e83ad3727c5b0eec09f1580662b9a67 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 [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP HANG], 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: 8a398e682fbdb381ac93c609ad4b423ac2394e17c6378000518776b8d4f2fd13 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 [ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN LOCKDEP], 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 [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: 9d26e58b06bfa6a0578b93f9eab6ceb06539c4f7c6dff59c83a2aed980423bd5 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 [ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN LOCKDEP], 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: 26d9da917e6ba2cd7b407055391cb54c706967b4477226edd507fabb4ab4ce7b 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 [ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN LOCKDEP], 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: 251ca786d12d63e21168aa2e3411f6e6c7c872325c52cd407731a279fb3de0b9 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 [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: 646854bed8a5c6df568c8ff4742251c02398b23f2b51bacaf16410823311c5a7 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 [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN], 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 [BUG KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed testing current HEAD f7977422e132104c98e139e0e071b2a45bc37066 testing commit f7977422e132104c98e139e0e071b2a45bc37066 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: c73455a179ac70b5e61af8d4ca79522c893394f370d3cb818fcea338f54a904d 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: 37m20.749705956s (build: 12m15.961129362s, test: 19m55.185457112s) crash still not fixed or there were kernel test errors commit msg: Revert "psample: Require 'CAP_NET_ADMIN' when joining "packets" group" crash: BUG: unable to handle kernel NULL pointer dereference in do_renameat2 BUG: kernel NULL pointer dereference, address: 0000000000000010 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 10d272067 P4D 10d272067 PUD 10c24e067 PMD 0 Oops: 0000 [#1] PREEMPT SMP CPU: 1 PID: 346 Comm: syz-executor.0 Not tainted 5.10.204-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 RIP: 0010:do_renameat2+0x27f/0x4f0 fs/namei.c:4563 Code: a8 e8 95 7b ff ff 48 8b 75 98 48 8d 7d b0 89 da 49 89 c4 e8 d3 8a ff ff 48 3d 00 f0 ff ff 49 89 c6 41 89 c5 0f 87 da 00 00 00 00 00 00 70 00 41 bd fe ff ff ff 0f 84 c0 00 00 00 8b 95 60 ff RSP: 0018:ffffc9000057fe60 EFLAGS: 00010203 RAX: 0000000000000010 RBX: 0000000000000000 RCX: 0000000500000000 RDX: 0000000000000004 RSI: 0000000400000000 RDI: ffff88810a8ea500 RBP: ffffc9000057ff10 R08: 0000000000000005 R09: 0000000000000064 R10: ffff888109655560 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000010 R14: 0000000000000010 R15: ffff888107f8d000 FS: 00007faa24a3f6c0(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000010 CR3: 000000010941d000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __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: 0033:0x7faa24ebcae9 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:00007faa24a3f0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000052 RAX: ffffffffffffffda RBX: 00007faa24fdbf80 RCX: 00007faa24ebcae9 RDX: 0000000000000000 RSI: 0000000020000140 RDI: 0000000020000100 RBP: 00007faa24f0847a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007faa24fdbf80 R15: 00007ffe1d8088f8 Modules linked in: CR2: 0000000000000010 ---[ end trace bf11de0f774836d8 ]--- RIP: 0010:do_renameat2+0x27f/0x4f0 fs/namei.c:4563 Code: a8 e8 95 7b ff ff 48 8b 75 98 48 8d 7d b0 89 da 49 89 c4 e8 d3 8a ff ff 48 3d 00 f0 ff ff 49 89 c6 41 89 c5 0f 87 da 00 00 00 00 00 00 70 00 41 bd fe ff ff ff 0f 84 c0 00 00 00 8b 95 60 ff RSP: 0018:ffffc9000057fe60 EFLAGS: 00010203 RAX: 0000000000000010 RBX: 0000000000000000 RCX: 0000000500000000 RDX: 0000000000000004 RSI: 0000000400000000 RDI: ffff88810a8ea500 RBP: ffffc9000057ff10 R08: 0000000000000005 R09: 0000000000000064 R10: ffff888109655560 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000010 R14: 0000000000000010 R15: ffff888107f8d000 FS: 00007faa24a3f6c0(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000010 CR3: 000000010941d000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: a8 e8 test $0xe8,%al 2: 95 xchg %eax,%ebp 3: 7b ff jnp 0x4 5: ff 48 8b decl -0x75(%rax) 8: 75 98 jne 0xffffffa2 a: 48 8d 7d b0 lea -0x50(%rbp),%rdi e: 89 da mov %ebx,%edx 10: 49 89 c4 mov %rax,%r12 13: e8 d3 8a ff ff call 0xffff8aeb 18: 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax 1e: 49 89 c6 mov %rax,%r14 21: 41 89 c5 mov %eax,%r13d 24: 0f 87 da 00 00 00 ja 0x104 * 2a: f7 00 00 00 70 00 testl $0x700000,(%rax) <-- trapping instruction 30: 41 bd fe ff ff ff mov $0xfffffffe,%r13d 36: 0f 84 c0 00 00 00 je 0xfc 3c: 8b .byte 0x8b 3d: 95 xchg %eax,%ebp 3e: 60 (bad) 3f: ff .byte 0xff