general protection fault in dccp_write

Date	Name	Commit	Repro	Result
2023/12/27	linux-6.1.y (ToT)	4aa6747d9352	C	[report] BUG: unable to handle kernel paging request in corrupted
2023/12/27	upstream (ToT)	fbafc3e621c3	C	Didn't crash

Kernel	Title	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
upstream	general protection fault in dccp_write_xmit dccp	C			5	2452d	2488d	4/28	fixed on 2018/03/23 18:14
upstream	general protection fault in dccp_write_xmit (2) dccp	C	done		32	337d	393d	25/28	fixed on 2024/01/20 21:18

upstream

general protection fault in dccp_write_xmit dccp

2452d

2488d

4/28

fixed on 2018/03/23 18:14

upstream

general protection fault in dccp_write_xmit (2) dccp

done

337d

393d

25/28

fixed on 2024/01/20 21:18

Created	Duration	User	Patch	Repo	Result
2024/01/08 07:02	2h09m	fix candidate		upstream	OK (0) job log

Created

Duration

User

Patch

Repo

Result

2024/01/08 07:02

2h09m

fix candidate

upstream

OK (0) job log

Unable to handle kernel paging request at virtual address dfff800000000000 KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] Mem abort info: ESR = 0x0000000096000006 EC = 0x25: DABT (current EL), IL = 32 bits SET = 0, FnV = 0 EA = 0, S1PTW = 0 FSC = 0x06: level 2 translation fault Data abort info: ISV = 0, ISS = 0x00000006 CM = 0, WnR = 0 [dfff800000000000] address between user and kernel address ranges Internal error: Oops: 0000000096000006 [#1] PREEMPT SMP Modules linked in: CPU: 1 PID: 18236 Comm: syz-executor346 Not tainted 6.1.69-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : ccid_hc_tx_send_packet net/dccp/ccid.h:166 [inline] pc : dccp_write_xmit+0x6c/0x208 net/dccp/output.c:356 lr : dccp_write_xmit+0x30/0x208 net/dccp/output.c:355 sp : ffff8000250f74c0 x29: ffff8000250f74c0 x28: ffff700004a1eeac x27: 00000000000f0000 x26: 1fffe0001b04eca6 x25: dfff800000000000 x24: 0000000000000000 x23: 0000000000000000 x22: ffff0000d3088dc0 x21: ffff800017fdf490 x20: ffff0000d8276530 x19: ffff0000d8275c40 x18: ffff8000250f7160 x17: ffff8000188a7000 x16: ffff8000084fa434 x15: ffff80001838cf80 x14: 0000000075644433 x13: dfff800000000000 x12: 0000000000000003 x11: 0000000000ff0100 x10: 0000000000000000 x9 : 1fffe0001b04ebd9 x8 : 0000000000000000 x7 : 0000000000000000 x6 : 0000000000000000 x5 : ffff800018a21c28 x4 : 0000000000000008 x3 : 0000000000000000 x2 : 0000000000000006 x1 : 0000000000000000 x0 : ffff0000d3088dc0 Call trace: ccid_hc_tx_send_packet net/dccp/ccid.h:166 [inline] dccp_write_xmit+0x6c/0x208 net/dccp/output.c:356 dccp_sendmsg+0x634/0xb80 net/dccp/proto.c:798 inet_sendmsg+0x15c/0x290 net/ipv4/af_inet.c:836 sock_sendmsg_nosec net/socket.c:716 [inline] __sock_sendmsg net/socket.c:728 [inline] ____sys_sendmsg+0x558/0x844 net/socket.c:2499 ___sys_sendmsg net/socket.c:2553 [inline] __sys_sendmmsg+0x318/0x7d8 net/socket.c:2639 __do_sys_sendmmsg net/socket.c:2668 [inline] __se_sys_sendmmsg net/socket.c:2665 [inline] __arm64_sys_sendmmsg+0xa0/0xbc net/socket.c:2665 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:206 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 Code: aa1403e0 97a22f85 f9400297 d343fee8 (38796908) ---[ end trace 0000000000000000 ]--- ---------------- Code disassembly (best guess): 0: aa1403e0 mov x0, x20 4: 97a22f85 bl 0xfffffffffe88be18 8: f9400297 ldr x23, [x20] c: d343fee8 lsr x8, x23, #3 * 10: 38796908 ldrb w8, [x8, x25] <-- trapping instruction

Crashes (4):
Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	VM info	Assets (help?)	Manager	Title
2023/12/27 00:28	linux-6.1.y	4aa6747d9352	fb427a07	.config	console log	report	syz	C		[disk image] [vmlinux] [kernel image]	ci2-linux-6-1-kasan-arm64	BUG: unable to handle kernel paging request in dccp_write_xmit
2023/12/30 02:49	linux-6.1.y	4aa6747d9352	fb427a07	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci2-linux-6-1-kasan	general protection fault in dccp_write_xmit
2023/12/12 16:46	linux-6.1.y	e7cddbb41b63	ebcad15c	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci2-linux-6-1-kasan	general protection fault in dccp_write_xmit
2023/12/26 22:52	linux-6.1.y	4aa6747d9352	fb427a07	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci2-linux-6-1-kasan-arm64	BUG: unable to handle kernel paging request in dccp_write_xmit

Crashes (4):

Assets (help?)