ddb: Don't flag breakpoint/watchpoint commands as MEMSAFE
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Authored by markj on Oct 24 2022, 4:28 PM.

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imp

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stevek
mhorne

Commits

rGc036339ddf0c: ddb: Don't flag breakpoint/watchpoint commands as MEMSAFE

Summary

They could potentially be abused to overwrite kernel memory.

Diff Detail

Repository

rG FreeBSD src repository

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Tests Not Applicable

Event Timeline

markj created this revision.Oct 24 2022, 4:28 PM

Herald added a subscriber: imp. · View Herald TranscriptOct 24 2022, 4:28 PM

markj requested review of this revision.Oct 24 2022, 4:28 PM

Harbormaster completed remote builds in B47970: Diff 112147.Oct 24 2022, 4:28 PM

markj added a child revision: D37106: kdb: Conditionally permit breaking to DDB with a raised securelevel.Oct 24 2022, 4:29 PM

mhorne accepted this revision.Oct 24 2022, 6:49 PM

This revision is now accepted and ready to land.Oct 24 2022, 6:49 PM

Closed by commit rGc036339ddf0c: ddb: Don't flag breakpoint/watchpoint commands as MEMSAFE (authored by markj). · Explain WhyNov 2 2022, 5:47 PM

This revision was automatically updated to reflect the committed changes.

markj added a commit: rGc036339ddf0c: ddb: Don't flag breakpoint/watchpoint commands as MEMSAFE.

Revision Contents
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Size

sys/

ddb/

db_command.c

16 lines

Diff 112524

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ddb: Don't flag breakpoint/watchpoint commands as MEMSAFEClosedPublicActions