ci2 starts bisection 2026-08-01 00:34:41.180556272 +0000 UTC m=+42613.702080303 bisecting fixing commit since d11359bcf2acd74e38781036f367454765315df0 building syzkaller on f79bac11032a7f8d1665ea9b593cdc3329e64064 ensuring issue is reproducible on original commit d11359bcf2acd74e38781036f367454765315df0 testing commit d11359bcf2acd74e38781036f367454765315df0 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.44 kernel signature: 7efc516dbfca2926f5d0d577318c95798038724ee603fd2324cae34814f83164 all runs: crashed: general protection fault in do_renameat2 representative crash: general protection fault in do_renameat2, types: [DoS] check whether we can drop unnecessary instrumentation disabling configs for [atomic_sleep hang memleak ubsan bug_or_warning kasan locking], they are not needed testing commit d11359bcf2acd74e38781036f367454765315df0 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.44 kernel signature: f06a10de506227242382f16659b29930ad25268f84cdbd70a9c4d3922d188dee 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: [NULL-POINTER-DEREFERENCE] the bug reproduces without the instrumentation disabling configs for [bug_or_warning kasan locking atomic_sleep hang memleak ubsan], they are not needed kconfig minimization: base=4788 full=6024 leaves diff=248 split chunks (needed=false): <248> split chunk #0 of len 248 into 5 parts testing without sub-chunk 1/5 disabling configs for [bug_or_warning kasan locking atomic_sleep hang memleak ubsan], they are not needed testing commit d11359bcf2acd74e38781036f367454765315df0 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.44 kernel signature: 170bcf5dfb3f29bce3ab345c5bbed79c8252b8ea0d87b35b7dc99d1480215942 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: [NULL-POINTER-DEREFERENCE] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [kasan locking atomic_sleep hang memleak ubsan bug_or_warning], they are not needed testing commit d11359bcf2acd74e38781036f367454765315df0 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.44 kernel signature: 573af5dfa3729d2c82eae69bbbb1139ef6733fd7b035d7bc984a6479004818b7 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: [NULL-POINTER-DEREFERENCE] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [hang memleak ubsan bug_or_warning kasan locking atomic_sleep], they are not needed testing commit d11359bcf2acd74e38781036f367454765315df0 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.44 kernel signature: 3a7d77cbb62d5f3712c48a04b3a2ac0c1595777ba85879e69914bdedea35aed9 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: [NULL-POINTER-DEREFERENCE] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [bug_or_warning kasan locking atomic_sleep hang memleak ubsan], they are not needed testing commit d11359bcf2acd74e38781036f367454765315df0 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.44 kernel signature: f9f35b80dab96c91284e131ba1d7a42e71445f64bceadd037dabe86543d0ac8b 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: [NULL-POINTER-DEREFERENCE] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [locking atomic_sleep hang memleak ubsan bug_or_warning kasan], they are not needed testing commit d11359bcf2acd74e38781036f367454765315df0 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.44 failed building d11359bcf2acd74e38781036f367454765315df0: net/socket.c:1128:(.text+0x817): undefined reference to `wext_handle_ioctl' net/socket.c:3397:(.text+0xa08): undefined reference to `compat_wext_handle_ioctl' net/core/net-procfs.c:346:(.text+0x109): undefined reference to `wext_proc_exit' net/core/net-procfs.c:330:(.text+0x1e4): undefined reference to `wext_proc_init' minimized to 48 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 ZEROPLUS_FF] disabling configs for [hang memleak ubsan bug_or_warning kasan locking atomic_sleep], they are not needed testing current HEAD 50b3a256e550e98ff6a49d32e77fb67998707961 testing commit 50b3a256e550e98ff6a49d32e77fb67998707961 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.44 kernel signature: afa894580d0eadd991b4a2182192dd2e2db42c6db6d6d530c4a1991e47db0b5c 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: [NULL-POINTER-DEREFERENCE] crash still not fixed/happens on the oldest tested release revisions tested: 7, total time: 1h47m9.24813394s (build: 38m19.004337193s, test: 45m16.332992813s) crash still not fixed or there were kernel test errors commit msg: Merge 5.10.260 into android13-5.10-lts crash: BUG: unable to handle kernel NULL pointer dereference in do_renameat2 BUG: kernel NULL pointer dereference, address: 0000000000000007 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 1184b8067 P4D 1184b8067 PUD 0 Oops: 0000 [#1] PREEMPT SMP CPU: 0 PID: 488 Comm: syz.2.17 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 RIP: 0010:do_renameat2+0x27f/0x4f0 fs/namei.c:4585 Code: a8 e8 75 7a ff ff 48 8b 75 98 48 8d 7d b0 89 da 49 89 c4 e8 c3 89 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:ffffc900007b3e60 EFLAGS: 00010203 RAX: 0000000000000007 RBX: 0000000000000000 RCX: 0000000500000000 RDX: 0000000000000004 RSI: 0000000400000000 RDI: ffff888117d9b780 RBP: ffffc900007b3f10 R08: 0000000000000005 R09: 0000000000000064 R10: ffff88810a4f6500 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000007 R14: 0000000000000007 R15: ffff888107f9e000 FS: 00007f43e67d36c0(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000007 CR3: 00000001184a8000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __do_sys_rename fs/namei.c:4678 [inline] __se_sys_rename fs/namei.c:4676 [inline] __x64_sys_rename+0x40/0x50 fs/namei.c:4676 do_syscall_64+0x32/0x50 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x61/0xcb RIP: 0033:0x7f43e6991e59 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f43e67d3028 EFLAGS: 00000246 ORIG_RAX: 0000000000000052 RAX: ffffffffffffffda RBX: 00007f43e6c0b090 RCX: 00007f43e6991e59 RDX: 0000000000000000 RSI: 00002000000000c0 RDI: 0000200000000100 RBP: 00007f43e6a27d6f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f43e6c0b128 R14: 00007f43e6c0b090 R15: 00007ffe366ab218 Modules linked in: CR2: 0000000000000007 ---[ end trace 99680d0f86c38b2c ]--- RIP: 0010:do_renameat2+0x27f/0x4f0 fs/namei.c:4585 Code: a8 e8 75 7a ff ff 48 8b 75 98 48 8d 7d b0 89 da 49 89 c4 e8 c3 89 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:ffffc900007b3e60 EFLAGS: 00010203 RAX: 0000000000000007 RBX: 0000000000000000 RCX: 0000000500000000 RDX: 0000000000000004 RSI: 0000000400000000 RDI: ffff888117d9b780 RBP: ffffc900007b3f10 R08: 0000000000000005 R09: 0000000000000064 R10: ffff88810a4f6500 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000007 R14: 0000000000000007 R15: ffff888107f9e000 FS: 00007f43e67d36c0(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000007 CR3: 00000001184a8000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess), 1 bytes skipped: 0: e8 75 7a ff ff call 0xffff7a7a 5: 48 8b 75 98 mov -0x68(%rbp),%rsi 9: 48 8d 7d b0 lea -0x50(%rbp),%rdi d: 89 da mov %ebx,%edx f: 49 89 c4 mov %rax,%r12 12: e8 c3 89 ff ff call 0xffff89da 17: 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax 1d: 49 89 c6 mov %rax,%r14 20: 41 89 c5 mov %eax,%r13d 23: 0f 87 da 00 00 00 ja 0x103 * 29: f7 00 00 00 70 00 testl $0x700000,(%rax) <-- trapping instruction 2f: 41 bd fe ff ff ff mov $0xfffffffe,%r13d 35: 0f 84 c0 00 00 00 je 0xfb 3b: 8b .byte 0x8b 3c: 95 xchg %eax,%ebp 3d: 60 (bad) 3e: ff .byte 0xff