| Title | Replies (including bot) | Last reply |
|---|---|---|
| [syzbot] [bpf?] WARNING in convert_ctx_accesses (2) | 0 (1) | 2025/09/13 08:23 |
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| Title | Replies (including bot) | Last reply |
|---|---|---|
| [syzbot] [bpf?] WARNING in convert_ctx_accesses (2) | 0 (1) | 2025/09/13 08:23 |
| Kernel | Title | Rank 🛈 | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
|---|---|---|---|---|---|---|---|---|---|---|
| upstream | WARNING in convert_ctx_accesses bpf | -1 | C | done | 80 | 22d | 44d | 29/29 | fixed on 2025/09/04 16:57 |
------------[ cut here ]------------ verifier bug: error during ctx access conversion (0)(1) WARNING: CPU: 0 PID: 3582 at kernel/bpf/verifier.c:21452 convert_ctx_accesses+0x9b0/0xb04 kernel/bpf/verifier.c:21452 Modules linked in: CPU: 0 UID: 0 PID: 3582 Comm: syz.2.17 Not tainted syzkaller #0 PREEMPT Hardware name: linux,dummy-virt (DT) pstate: 60402009 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : convert_ctx_accesses+0x9b0/0xb04 kernel/bpf/verifier.c:21452 lr : convert_ctx_accesses+0x9b0/0xb04 kernel/bpf/verifier.c:21452 sp : ffff8000893939e0 x29: ffff8000893939e0 x28: faf0000008948000 x27: 0000000000000002 x26: f8ff8000832d5058 x25: 0000000000000000 x24: 0000000000000000 x23: ffff8000816c4744 x22: 0000000000000004 x21: 0000000000000002 x20: 0000000000000004 x19: ffff80008242a948 x18: 0000000000000001 x17: fff07ffffcfe1000 x16: ffff800080000000 x15: fff000007f8d4980 x14: 00000000000002de x13: 0000000000000000 x12: 0000000000000000 x11: 00000000000000c0 x10: b2ff97ff6a7f8b51 x9 : a6a5f6a0197b216f x8 : f9f0000008b04978 x7 : 0000000000000190 x6 : 000000259596bf72 x5 : 0000000000000001 x4 : fbffff3fffffffff x3 : 000000000000ffff x2 : 0000000000000000 x1 : 0000000000000000 x0 : f9f0000008b03780 Call trace: convert_ctx_accesses+0x9b0/0xb04 kernel/bpf/verifier.c:21452 (P) bpf_check+0x12f8/0x2aac kernel/bpf/verifier.c:24743 bpf_prog_load+0x634/0xb74 kernel/bpf/syscall.c:2979 __sys_bpf+0x2e0/0x1a3c kernel/bpf/syscall.c:6029 __do_sys_bpf kernel/bpf/syscall.c:6139 [inline] __se_sys_bpf kernel/bpf/syscall.c:6137 [inline] __arm64_sys_bpf+0x24/0x34 kernel/bpf/syscall.c:6137 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x48/0x110 arch/arm64/kernel/syscall.c:49 el0_svc_common.constprop.0+0x40/0xe0 arch/arm64/kernel/syscall.c:132 do_el0_svc+0x1c/0x28 arch/arm64/kernel/syscall.c:151 el0_svc+0x34/0x10c arch/arm64/kernel/entry-common.c:879 el0t_64_sync_handler+0xa0/0xe4 arch/arm64/kernel/entry-common.c:898 el0t_64_sync+0x1a4/0x1a8 arch/arm64/kernel/entry.S:596 ---[ end trace 0000000000000000 ]---