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openSUSE:Leap:15.3
crash.24892
crash-verify-exception-frame-accessible-for-all...
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File crash-verify-exception-frame-accessible-for-all-verify-requests.patch of Package crash.24892
Index: b/x86_64.c =================================================================== --- a/x86_64.c +++ b/x86_64.c @@ -4386,15 +4386,20 @@ x86_64_exception_frame(ulong flags, ulon long r8, r9, r10, r11, r12, r13, r14, r15; struct machine_specific *ms; struct syment *sp; - ulong offset; + ulong offset, verify_addr; char *pt_regs_buf; long verified; long err; char buf[BUFSIZE]; - if (flags == EFRAME_VERIFY) { - if (!accessible(kvaddr) || - !accessible(kvaddr + SIZE(pt_regs) - sizeof(long))) + if (flags & EFRAME_VERIFY) { + if (kvaddr) + verify_addr = kvaddr; + else + verify_addr = (local - bt->stackbuf) + bt->stackbase; + + if (!accessible(verify_addr) || + !accessible(verify_addr + SIZE(pt_regs) - sizeof(long))) return FALSE; }
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