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pkg/report: double-free is at least as severe as UAF write #6691

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tarasmadan merged 1 commit into from
Jan 26, 2026
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pkg/report: double-free is at least as severe as UAF write #6691

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2 changes: 1 addition & 1 deletion pkg/report/README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -11,7 +11,7 @@ prioritize the triaging queue.
KASAN detected bugs are typically more dangerous than KMSAN detected bugs. And KMSAN detected bugs are typically more
dangerous than KCSAN detected bugs.

### Use-after-free write > invalid-free(double-free) > use-after-free read.
### Invalid-free (double-free) >= use-after-free write > use-after-free read.

### KASAN write > KASAN read
KASAN write indicates an out-of-bounds or use-after-free write operation. Any uncontrolled write to kernel memory is
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4 changes: 2 additions & 2 deletions pkg/report/impact_score.go
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Expand Up @@ -13,11 +13,11 @@ import (
// entries are considered more severe.
var impactOrder = []crash.Type{
// Highest Priority (Direct Memory Corruption - Write)
crash.KASANInvalidFree,
crash.KFENCEInvalidFree,
crash.KASANUseAfterFreeWrite,
crash.KASANWrite,
// High Priority (Memory Corruption)
crash.KASANInvalidFree,
crash.KFENCEInvalidFree,
crash.KFENCEMemoryCorruption,
crash.KASANUseAfterFreeRead,
crash.KMSANUseAfterFreeRead,
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