Christophe Leroy <christophe.le...@csgroup.eu> writes: > Le 01/08/2023 à 03:17, Benjamin Gray a écrit : >> Syzkaller triggered a null pointer dereference in the >> arch_unregister_hw_breakpoint() hook. This is due to accessing >> the bp->ctx->task field changing to -1 while we iterate the breakpoints. >> >> This series refactors the breakpoint tracking logic to remove the >> dependency on bp->ctx entirely. It also simplifies handling of ptrace and >> perf breakpoints, making insertion less restrictive. > > Is there any link between this series and the following issue: > https://github.com/linuxppc/issues/issues/38
AFAIK no, Ben started looking at the breakpoint code due to a syzkaller report of an oops. But this series would resolve that issue AFAICS, so I guess they are linked in that sense. cheers
