Check the magic value in longjmp() before calling sigprocmask().
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Authored by jhb on Apr 18 2020, 4:01 PM.

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mhorne
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rS360169: Check the magic value in longjmp() before calling sigprocmask().

Summary

This avoids passing garbage to sigprocmask() if the jump buffer is
invalid.

Obtained from: CheriBSD

Test Plan

booted multiuser in CheriBSD

Diff Detail

Repository

rS FreeBSD src repository - subversion

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Lint Not Applicable

Unit

Tests Not Applicable

Event Timeline

jhb created this revision.Apr 18 2020, 4:01 PM

Harbormaster completed remote builds in B30585: Diff 70737.Apr 18 2020, 4:02 PM

mhorne accepted this revision.Apr 18 2020, 5:03 PM

This revision is now accepted and ready to land.Apr 18 2020, 5:03 PM

Closed by commit rS360169: Check the magic value in longjmp() before calling sigprocmask(). (authored by jhb). · Explain WhyApr 21 2020, 5:40 PM

This revision was automatically updated to reflect the committed changes.

jhb added a commit: rS360169: Check the magic value in longjmp() before calling sigprocmask()..

Herald added a subscriber: imp. · View Herald TranscriptApr 21 2020, 5:40 PM

Revision Contents
Changeset List

Path

Size

head/

lib/

libc/

riscv/

gen/

setjmp.S

10 lines

Diff 70847

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head/lib/libc/riscv/gen/setjmp.S

Check the magic value in longjmp() before calling sigprocmask().ClosedPublicActions