KASAN: null-ptr-deref Write in sys_io_uring

ID	Workflow	Correct	Bug	Created	Started	Finished	Revision	Error
526f3664-06bf-4b2a-b43b-bf6d86fc3f96	assessment-security	💥	KASAN: null-ptr-deref Write in sys_io_uring_register	2026/06/18 05:13	2026/06/18 05:13	2026/06/18 05:30	b62b3ded1759f79b37600c5ffe2b0a81b919b0b0	failed to run ["make" "KERNELVERSION=syzkaller" "KERNELRELEASE=syzkaller" "LOCALVERSION=-syzkaller" "-j" "32" "ARCH=x86_64" "CC=ccache clang" "LD=ld.lld" "O=/app/workdir/cache/build/8f46b441684a6784b1... truncated to first 200 bytes; open job for full error
1f8b85ad-009c-49d0-b61e-78e589e55233	assessment-security	💥	KASAN: null-ptr-deref Write in sys_io_uring_register	2026/06/10 01:01	2026/06/10 01:01	2026/06/10 01:26	c36c07f6c1f2230a36374cbd22235f635e8f9284	failed to run ["make" "KERNELVERSION=syzkaller" "KERNELRELEASE=syzkaller" "LOCALVERSION=-syzkaller" "-j" "32" "ARCH=x86_64" "CC=ccache clang" "LD=ld.lld" "O=/app/workdir/cache/build/8f46b441684a6784b1... truncated to first 200 bytes; open job for full error
bd3be89c-1070-47f1-9b57-4a4ebdfd3030	assessment-security	💥	KASAN: null-ptr-deref Write in sys_io_uring_register	2026/06/04 03:13	2026/06/04 03:13	2026/06/04 03:30	62fe15281f5011cd203d8845b8767b10e7443aa5	failed to run ["make" "KERNELVERSION=syzkaller" "KERNELRELEASE=syzkaller" "LOCALVERSION=-syzkaller" "-j" "32" "ARCH=x86_64" "CC=ccache clang" "LD=ld.lld" "O=/app/workdir/cache/build/8f46b441684a6784b1... truncated to first 200 bytes; open job for full error
791d3ba4-faad-46c6-a985-cd492d909ca2	assessment-security	💥	KASAN: null-ptr-deref Write in sys_io_uring_register	2026/06/01 18:15	2026/06/01 18:15	2026/06/01 18:45	386cc6dacdf7e3ebce9507beed6755d7e999554d	failed to run ["make" "KERNELVERSION=syzkaller" "KERNELRELEASE=syzkaller" "LOCALVERSION=-syzkaller" "-j" "32" "ARCH=x86_64" "CC=ccache clang" "LD=ld.lld" "O=/app/workdir/cache/build/8f46b441684a6784b1... truncated to first 200 bytes; open job for full error
871fcc57-d289-426d-b506-044c387818ba	assessment-security	💥	KASAN: null-ptr-deref Write in sys_io_uring_register	2026/05/17 11:26	2026/05/17 11:26	2026/05/17 11:45	de5aae85e5f28e2fa1c7deefcc24fe286abe5140	failed to run ["make" "KERNELVERSION=syzkaller" "KERNELRELEASE=syzkaller" "LOCALVERSION=-syzkaller" "-j" "32" "ARCH=x86_64" "CC=ccache clang" "LD=ld.lld" "O=/app/workdir/cache/build/8f46b441684a6784b1... truncated to first 200 bytes; open job for full error

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[syzbot] [io-uring?] KASAN: null-ptr-deref Write in sys_io_uring_register	11 (13)	2024/12/04 20:18

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[syzbot] [io-uring?] KASAN: null-ptr-deref Write in sys_io_uring_register

11 (13)

2024/12/04 20:18

================================================================== BUG: KASAN: null-ptr-deref in instrument_atomic_read_write include/linux/instrumented.h:96 [inline] BUG: KASAN: null-ptr-deref in atomic_long_sub_and_test include/linux/atomic/atomic-instrumented.h:4521 [inline] BUG: KASAN: null-ptr-deref in put_cred_many include/linux/cred.h:255 [inline] BUG: KASAN: null-ptr-deref in put_cred include/linux/cred.h:269 [inline] BUG: KASAN: null-ptr-deref in io_unregister_personality io_uring/register.c:82 [inline] BUG: KASAN: null-ptr-deref in __io_uring_register io_uring/register.c:698 [inline] BUG: KASAN: null-ptr-deref in __do_sys_io_uring_register io_uring/register.c:902 [inline] BUG: KASAN: null-ptr-deref in __se_sys_io_uring_register+0x1227/0x3b60 io_uring/register.c:879 Write of size 8 at addr 0000000000000406 by task syz-executor274/5828 CPU: 1 UID: 0 PID: 5828 Comm: syz-executor274 Not tainted 6.13.0-rc1-next-20241203-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Call Trace: <TASK> __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120 print_report+0xe8/0x550 mm/kasan/report.c:492 kasan_report+0x143/0x180 mm/kasan/report.c:602 kasan_check_range+0x282/0x290 mm/kasan/generic.c:189 instrument_atomic_read_write include/linux/instrumented.h:96 [inline] atomic_long_sub_and_test include/linux/atomic/atomic-instrumented.h:4521 [inline] put_cred_many include/linux/cred.h:255 [inline] put_cred include/linux/cred.h:269 [inline] io_unregister_personality io_uring/register.c:82 [inline] __io_uring_register io_uring/register.c:698 [inline] __do_sys_io_uring_register io_uring/register.c:902 [inline] __se_sys_io_uring_register+0x1227/0x3b60 io_uring/register.c:879 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f65bbcb03a9 Code: 48 83 c4 28 c3 e8 37 17 00 00 0f 1f 80 00 00 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffe8fac7478 EFLAGS: 00000246 ORIG_RAX: 00000000000001ab RAX: ffffffffffffffda RBX: 000000000000371d RCX: 00007f65bbcb03a9 RDX: 0000000000000000 RSI: 000000000000000a RDI: 0000000000000003 RBP: 0000000000000003 R08: 00000000000ac5f8 R09: 00000000000ac5f8 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffe8fac7648 R14: 0000000000000001 R15: 0000000000000001 </TASK> ==================================================================

Crashes (15):
Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	VM info	Assets (help?)	Manager	Title
2024/12/04 10:08	linux-next	c245a7a79602	b50eb251	.config	strace log	report	syz / log	C		[disk image] [vmlinux] [kernel image]	ci-upstream-linux-next-kasan-gce-root	KASAN: null-ptr-deref Write in sys_io_uring_register
2024/12/04 09:39	linux-next	c245a7a79602	b50eb251	.config	strace log	report	syz / log	C		[disk image] [vmlinux] [kernel image]	ci-upstream-linux-next-kasan-gce-root	KASAN: null-ptr-deref Write in sys_io_uring_register
2024/12/04 07:55	linux-next	c245a7a79602	b50eb251	.config	strace log	report	syz / log	C		[disk image] [vmlinux] [kernel image]	ci-upstream-linux-next-kasan-gce-root	KASAN: null-ptr-deref Write in sys_io_uring_register
2024/12/11 07:06	linux-next	af2ea8ab7a54	cfc402b4	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci-upstream-linux-next-kasan-gce-root	KASAN: null-ptr-deref Write in sys_io_uring_register
2024/12/11 07:06	linux-next	af2ea8ab7a54	cfc402b4	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci-upstream-linux-next-kasan-gce-root	KASAN: null-ptr-deref Write in sys_io_uring_register
2024/12/09 11:26	linux-next	af2ea8ab7a54	9ac0fdc6	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci-upstream-linux-next-kasan-gce-root	KASAN: null-ptr-deref Write in sys_io_uring_register
2024/12/09 03:36	linux-next	af2ea8ab7a54	9ac0fdc6	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci-upstream-linux-next-kasan-gce-root	KASAN: null-ptr-deref Write in sys_io_uring_register
2024/12/07 10:46	linux-next	af2ea8ab7a54	9ac0fdc6	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci-upstream-linux-next-kasan-gce-root	KASAN: null-ptr-deref Write in sys_io_uring_register
2024/12/07 10:46	linux-next	af2ea8ab7a54	9ac0fdc6	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci-upstream-linux-next-kasan-gce-root	KASAN: null-ptr-deref Write in sys_io_uring_register
2024/12/06 21:31	linux-next	af2ea8ab7a54	9ac0fdc6	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci-upstream-linux-next-kasan-gce-root	KASAN: null-ptr-deref Write in sys_io_uring_register
2024/12/06 21:31	linux-next	af2ea8ab7a54	9ac0fdc6	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci-upstream-linux-next-kasan-gce-root	KASAN: null-ptr-deref Write in sys_io_uring_register
2024/12/04 04:49	linux-next	c245a7a79602	b50eb251	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci-upstream-linux-next-kasan-gce-root	KASAN: null-ptr-deref Write in sys_io_uring_register
2024/12/04 04:25	linux-next	c245a7a79602	b50eb251	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci-upstream-linux-next-kasan-gce-root	KASAN: null-ptr-deref Write in sys_io_uring_register
2024/12/04 01:38	linux-next	c245a7a79602	b50eb251	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci-upstream-linux-next-kasan-gce-root	KASAN: null-ptr-deref Write in sys_io_uring_register
2024/12/04 01:37	linux-next	c245a7a79602	b50eb251	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci-upstream-linux-next-kasan-gce-root	KASAN: null-ptr-deref Write in sys_io_uring_register

Crashes (15):

Assets (help?)

2024/12/04 10:08

linux-next