general protection fault in khugepaged (3)

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[syzbot] [mm?] general protection fault in khugepaged (3)	0 (1)	2024/07/13 12:38

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[syzbot] [mm?] general protection fault in khugepaged (3)

0 (1)

2024/07/13 12:38

Kernel	Title	Repro	Cause bisect	Count	Last	Reported	Patched	Status
upstream	general protection fault in khugepaged mm	C	done	3	1502d	1514d	15/27	fixed on 2020/09/16 22:51
upstream	general protection fault in khugepaged (2) mm			1	277d	273d	0/27	auto-obsoleted due to no activity on 2024/01/27 04:37
linux-4.19	general protection fault in khugepaged			1	1020d	1020d	0/1	auto-closed as invalid on 2022/03/15 05:26

Oops: general protection fault, probably for non-canonical address 0xdffffc0000000084: 0000 [#1] PREEMPT SMP KASAN PTI KASAN: null-ptr-deref in range [0x0000000000000420-0x0000000000000427] CPU: 1 UID: 0 PID: 37 Comm: khugepaged Not tainted 6.11.0-rc1-syzkaller-00154-gc0ecd6388360 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 RIP: 0010:khugepaged_scan_mm_slot mm/khugepaged.c:2382 [inline] RIP: 0010:khugepaged_do_scan mm/khugepaged.c:2514 [inline] RIP: 0010:khugepaged+0xad9/0x1600 mm/khugepaged.c:2570 Code: 00 00 41 bc 01 00 00 00 45 31 ff e9 9a fd ff ff e8 ec be 9c ff 49 8d 7f 20 48 b9 00 00 00 00 00 fc ff df 48 89 f8 48 c1 e8 03 <80> 3c 08 00 0f 85 a3 09 00 00 49 8d 7f 70 49 8b 6f 20 48 b9 00 00 RSP: 0018:ffffc90000ad7ce8 EFLAGS: 00010207 RAX: 0000000000000084 RBX: 0000000000000000 RCX: dffffc0000000000 RDX: ffff888019ee1e00 RSI: ffffffff81edbc44 RDI: 0000000000000426 RBP: 0000000008100077 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000003 R13: 0000000000000000 R14: 1ffff9200015afaf R15: 0000000000000406 FS: 0000000000000000(0000) GS:ffff8880b9300000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ff8e14f6968 CR3: 000000007c162000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> kthread+0x2c1/0x3a0 kernel/kthread.c:389 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 </TASK> Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:khugepaged_scan_mm_slot mm/khugepaged.c:2382 [inline] RIP: 0010:khugepaged_do_scan mm/khugepaged.c:2514 [inline] RIP: 0010:khugepaged+0xad9/0x1600 mm/khugepaged.c:2570 Code: 00 00 41 bc 01 00 00 00 45 31 ff e9 9a fd ff ff e8 ec be 9c ff 49 8d 7f 20 48 b9 00 00 00 00 00 fc ff df 48 89 f8 48 c1 e8 03 <80> 3c 08 00 0f 85 a3 09 00 00 49 8d 7f 70 49 8b 6f 20 48 b9 00 00 RSP: 0018:ffffc90000ad7ce8 EFLAGS: 00010207 RAX: 0000000000000084 RBX: 0000000000000000 RCX: dffffc0000000000 RDX: ffff888019ee1e00 RSI: ffffffff81edbc44 RDI: 0000000000000426 RBP: 0000000008100077 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000003 R13: 0000000000000000 R14: 1ffff9200015afaf R15: 0000000000000406 FS: 0000000000000000(0000) GS:ffff8880b9300000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000056322350ffd0 CR3: 000000002b1ea000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 00 00 add %al,(%rax) 2: 41 bc 01 00 00 00 mov $0x1,%r12d 8: 45 31 ff xor %r15d,%r15d b: e9 9a fd ff ff jmp 0xfffffdaa 10: e8 ec be 9c ff call 0xff9cbf01 15: 49 8d 7f 20 lea 0x20(%r15),%rdi 19: 48 b9 00 00 00 00 00 movabs $0xdffffc0000000000,%rcx 20: fc ff df 23: 48 89 f8 mov %rdi,%rax 26: 48 c1 e8 03 shr $0x3,%rax * 2a: 80 3c 08 00 cmpb $0x0,(%rax,%rcx,1) <-- trapping instruction 2e: 0f 85 a3 09 00 00 jne 0x9d7 34: 49 8d 7f 70 lea 0x70(%r15),%rdi 38: 49 8b 6f 20 mov 0x20(%r15),%rbp 3c: 48 rex.W 3d: b9 .byte 0xb9

Time	Kernel	Commit	Syzkaller	Config	Log	Report	VM info	Assets (help?)	Manager	Title
2024/08/02 09:11	upstream	c0ecd6388360	1e9c4cf3	.config	console log	report	info	[disk image] [vmlinux] [kernel image]	ci-upstream-kasan-gce-selinux-root	general protection fault in khugepaged
2024/08/01 20:53	upstream	21b136cc63d2	1e9c4cf3	.config	console log	report	info	[disk image] [vmlinux] [kernel image]	ci-upstream-kasan-gce	general protection fault in khugepaged
2024/07/13 12:37	upstream	528dd46d0fc3	eaeb5c15	.config	console log	report	info	[disk image] [vmlinux] [kernel image]	ci-upstream-kasan-badwrites-root	general protection fault in khugepaged
2024/07/01 22:27	upstream	22a40d14b572	b294e901	.config	console log	report	info	[disk image] [vmlinux] [kernel image]	ci-upstream-kasan-gce-root	general protection fault in khugepaged
2024/04/21 10:16	upstream	977b1ef51866	af24b050	.config	console log	report	info	[disk image] [vmlinux] [kernel image]	ci-upstream-kasan-gce	general protection fault in khugepaged
2024/02/02 12:37	upstream	021533194476	60bf9982	.config	console log	report	info	[disk image] [vmlinux] [kernel image]	ci-upstream-kasan-badwrites-root	general protection fault in khugepaged
2024/07/02 05:34	upstream	9903efbddba0	b294e901	.config	console log	report	info	[disk image (non-bootable)] [vmlinux] [kernel image]	ci-qemu-upstream	general protection fault in khugepaged