bpf: Report Resource Lifetime reference leaks

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Augment selected Resource Lifetime Safety failures with structured diagnostics
while preserving the existing verifier messages.

Report unreleased references from check_reference_leak() using
reference-scoped diagnostic history, and add state reports for dynptr,
iterator, lock, and IRQ-flag lifetime misuse.

IRQ restore mismatch and out-of-order diagnostics use IRQ context-scoped
history when an IRQ-disabled region is active, so retained save/restore context
is still visible after per-state history removal.

Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
Link: https://patch.msgid.link/20260815064612.378577-11-memxor@gmail.com
Signed-off-by: Eduard Zingerman <eddyz87@gmail.com>

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Kumar Kartikeya Dwivedi 2026-08-15 08:46:05 +02:00 • committed by Eduard Zingerman

parent 2bdc90f531

commit 5d57646275

3 changed files with 195 additions and 8 deletions

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91

kernel/bpf/diagnostics.c

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9

kernel/bpf/diagnostics.h

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103

kernel/bpf/verifier.c

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