BUG: unable to handle kernel paging request in bpf_probe_read_kernel

Date	Name	Commit	Repro	Result
2024/02/07	upstream (ToT)	99bd3cb0d12e	C	[report] BUG: unable to handle kernel paging request in bpf_probe_read_kernel_str
2024/04/06	upstream (ToT)	6c6e47d69d82	C	Failed due to an error; will retry later

Date

Name

Commit

Repro

Result

2024/02/07

upstream (ToT)

99bd3cb0d12e

[report] BUG: unable to handle kernel paging request in bpf_probe_read_kernel_str

2024/04/06

upstream (ToT)

6c6e47d69d82

Failed due to an error; will retry later

Kernel	Title	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
upstream	BUG: unable to handle kernel paging request in bpf_probe_read_kernel_str mm	C	done	error	4	271d	288d	0/28	auto-obsoleted due to no activity on 2024/07/13 02:13
android-6-1	BUG: unable to handle kernel paging request in bpf_probe_read_kernel_str missing-backport	C		inconclusive	3	155d	292d	0/2	auto-obsoleted due to no activity on 2024/09/27 05:34
linux-5.15	BUG: unable to handle kernel paging request in bpf_probe_read_kernel_str origin:upstream	C		done	1	258d	292d	3/3	fixed on 2024/04/08 12:30
android-5-15	BUG: unable to handle kernel paging request in bpf_probe_read_kernel_str missing-backport	C		done	2	113d	289d	0/2	auto-obsoleted due to no activity on 2024/11/07 20:45

Created	Duration	User	Patch	Repo	Result
2024/04/08 07:56	4h30m	bisect fix		linux-6.1.y	OK (1) job log
2024/03/08 04:39	1h11m	bisect fix		linux-6.1.y	OK (0) job log log

Created

Duration

User

Patch

Repo

Result

2024/04/08 07:56

4h30m

bisect fix

linux-6.1.y

OK (1) job log

2024/03/08 04:39

1h11m

bisect fix

linux-6.1.y

OK (0) job log log

BUG: unable to handle page fault for address: ffffffffff600000 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD ce91067 P4D ce91067 PUD ce93067 PMD ceb6067 PTE 0 Oops: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 15 Comm: ksoftirqd/0 Not tainted 6.1.77-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 RIP: 0010:strncpy_from_kernel_nofault+0x89/0x1c0 mm/maccess.c:91 Code: 00 48 89 d0 48 c1 e8 03 48 89 44 24 10 0f b6 04 28 84 c0 48 89 14 24 0f 85 d5 00 00 00 ff 02 45 31 f6 49 89 df 48 8b 54 24 08 <42> 8a 1c 33 4a 8d 3c 32 48 89 f8 48 c1 e8 03 49 89 ec 0f b6 04 28 RSP: 0018:ffffc90000147868 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffffffffff600000 RCX: ffff88813fef3b80 RDX: ffffc900001478e0 RSI: ffffffffff600000 RDI: ffffffffff600000 RBP: dffffc0000000000 R08: ffffffff813ddda9 R09: fffffbfff2092245 R10: 0000000000000000 R11: dffffc0000000001 R12: ffffffffff600000 R13: 0000000000000005 R14: 0000000000000000 R15: ffffffffff600000 FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffffff600000 CR3: 000000000ce8e000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> bpf_probe_read_kernel_str_common kernel/trace/bpf_trace.c:265 [inline] ____bpf_probe_read_kernel_str kernel/trace/bpf_trace.c:274 [inline] bpf_probe_read_kernel_str+0x26/0x70 kernel/trace/bpf_trace.c:271 bpf_prog_ef3a4661c9d1378e+0x42/0x44 bpf_dispatcher_nop_func include/linux/bpf.h:989 [inline] __bpf_prog_run include/linux/filter.h:600 [inline] bpf_prog_run include/linux/filter.h:607 [inline] __bpf_trace_run kernel/trace/bpf_trace.c:2275 [inline] bpf_trace_run2+0x1fd/0x410 kernel/trace/bpf_trace.c:2314 __bpf_trace_kfree+0x6e/0x90 include/trace/events/kmem.h:94 trace_kfree include/trace/events/kmem.h:94 [inline] kfree+0xf6/0x190 mm/slab_common.c:994 security_task_free+0x96/0xc0 security/security.c:1704 __put_task_struct+0xf4/0x280 kernel/fork.c:846 rcu_do_batch kernel/rcu/tree.c:2296 [inline] rcu_core+0xad4/0x17e0 kernel/rcu/tree.c:2556 __do_softirq+0x2e9/0xa4c kernel/softirq.c:571 run_ksoftirqd+0xc1/0x120 kernel/softirq.c:934 smpboot_thread_fn+0x52c/0xa30 kernel/smpboot.c:164 kthread+0x28d/0x320 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306 </TASK> Modules linked in: CR2: ffffffffff600000 ---[ end trace 0000000000000000 ]--- RIP: 0010:strncpy_from_kernel_nofault+0x89/0x1c0 mm/maccess.c:91 Code: 00 48 89 d0 48 c1 e8 03 48 89 44 24 10 0f b6 04 28 84 c0 48 89 14 24 0f 85 d5 00 00 00 ff 02 45 31 f6 49 89 df 48 8b 54 24 08 <42> 8a 1c 33 4a 8d 3c 32 48 89 f8 48 c1 e8 03 49 89 ec 0f b6 04 28 RSP: 0018:ffffc90000147868 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffffffffff600000 RCX: ffff88813fef3b80 RDX: ffffc900001478e0 RSI: ffffffffff600000 RDI: ffffffffff600000 RBP: dffffc0000000000 R08: ffffffff813ddda9 R09: fffffbfff2092245 R10: 0000000000000000 R11: dffffc0000000001 R12: ffffffffff600000 R13: 0000000000000005 R14: 0000000000000000 R15: ffffffffff600000 FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffffff600000 CR3: 000000000ce8e000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 00 48 89 add %cl,-0x77(%rax) 3: d0 48 c1 rorb -0x3f(%rax) 6: e8 03 48 89 44 call 0x4489480e b: 24 10 and $0x10,%al d: 0f b6 04 28 movzbl (%rax,%rbp,1),%eax 11: 84 c0 test %al,%al 13: 48 89 14 24 mov %rdx,(%rsp) 17: 0f 85 d5 00 00 00 jne 0xf2 1d: ff 02 incl (%rdx) 1f: 45 31 f6 xor %r14d,%r14d 22: 49 89 df mov %rbx,%r15 25: 48 8b 54 24 08 mov 0x8(%rsp),%rdx * 2a: 42 8a 1c 33 mov (%rbx,%r14,1),%bl <-- trapping instruction 2e: 4a 8d 3c 32 lea (%rdx,%r14,1),%rdi 32: 48 89 f8 mov %rdi,%rax 35: 48 c1 e8 03 shr $0x3,%rax 39: 49 89 ec mov %rbp,%r12 3c: 0f b6 04 28 movzbl (%rax,%rbp,1),%eax

Crashes (1):
Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	VM info	Assets (help?)	Manager	Title
2024/02/07 01:00	linux-6.1.y	f1bb70486c9c	6404acf9	.config	console log	report	syz	C		[disk image] [vmlinux] [kernel image]	ci2-linux-6-1-kasan-perf	BUG: unable to handle kernel paging request in bpf_probe_read_kernel_str

Crashes (1):

Assets (help?)