leviathan
9d88b475c1
The README has been claiming "each module credits the original CVE
reporter and PoC author in its NOTICE.md" since v0.1.0, but only
copy_fail_family actually shipped one. Fixed.
modules/<name>/NOTICE.md (×19 new + 1 existing): per-module
research credit covering CVE ID, discoverer, original advisory
URL where public, upstream fix commit, IAMROOT's role.
iamroot.c: new --dump-offsets subcommand. Resolves kernel offsets
via the existing core/offsets.c four-source chain (env →
/proc/kallsyms → /boot/System.map → embedded table), then emits
a ready-to-paste C struct entry for kernel_table[]. Run once
as root on a target kernel build; upstream via PR. Eliminates
fabricating offsets — every shipped entry traces back to a
`iamroot --dump-offsets` invocation on a real kernel.
docs/OFFSETS.md: documents the --dump-offsets workflow.
CVES.md: notes the NOTICE.md convention + offset dump tool.
iamroot.c: bump IAMROOT_VERSION 0.3.0 → 0.3.1.
22 lines
644 B
Markdown
22 lines
644 B
Markdown
# NOTICE — dirty_pipe
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## Vulnerability
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**CVE-2022-0847** — pipe `PIPE_BUF_FLAG_CAN_MERGE` flag inheritance allows
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arbitrary file write into the page cache.
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## Research credit
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Discovered and disclosed by **Max Kellermann** (CM4all GmbH), March 2022.
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Original advisory: <https://dirtypipe.cm4all.com/>
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Upstream fix: mainline 5.17 (commit `9d2231c5d74e`, Feb 2022).
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## IAMROOT role
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This module bundles the canonical splice-into-pipe primitive that
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writes UID=0 into `/etc/passwd`'s page cache, then drops a root shell
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via `su`. Detection covers the splice() syscall against sensitive
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files and non-root modifications to passwd/shadow.
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