Answer in brief
CVE-2022-49085 records a High severity (CVSS 7.8) vulnerability in drbd: Fix five use after free bugs in get_initial_state. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=a29728463b254ce81ecefdf20c1a02e01d9361da <0489700bfeb1e53eb2039c2291c67e71b0b40103 || >=a29728463b254ce81ecefdf20c1a02e01d9361da <dcf6be17b5c53b741898d2223b23e66d682de300 || >=a29728463b254ce81ecefdf20c1a02e01d9361da <188fe6b26765edbad4055611c0f788b6870f4024 || >=a29728463b254ce81ecefdf20c1a02e01d9361da <b6a4055036eed1f5e239ce3d8b0db1ce38bba447 || >=a29728463b254ce81ecefdf20c1a02e01d9361da <594205b4936771a250f9d141e7e0fff21c3dd2d9 || >=a29728463b254ce81ecefdf20c1a02e01d9361da <a972c768723359ec995579902473028fe3cd64b1 || >=a29728463b254ce81ecefdf20c1a02e01d9361da <de63e74da2333b4068bb79983e632db730fea97e || >=a29728463b254ce81ecefdf20c1a02e01d9361da <226e993c39405292781bfcf4b039a8db56aab362 || >=a29728463b254ce81ecefdf20c1a02e01d9361da <aadb22ba2f656581b2f733deb3a467c48cc618f6 | 0489700bfeb1e53eb2039c2291c67e71b0b40103, dcf6be17b5c53b741898d2223b23e66d682de300, 188fe6b26765edbad4055611c0f788b6870f4024, b6a4055036eed1f5e239ce3d8b0db1ce38bba447, 594205b4936771a250f9d141e7e0fff21c3dd2d9, a972c768723359ec995579902473028fe3cd64b1, de63e74da2333b4068bb79983e632db730fea97e, 226e993c39405292781bfcf4b039a8db56aab362, aadb22ba2f656581b2f733deb3a467c48cc618f6 |
| Linux/Linuxgeneric | 4.5 | Not reported |
Published upstream
Feb 26, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 5, 2026
In the Linux kernel, the following vulnerability has been resolved: drbd: Fix five use after free bugs in get_initial_state In get_initial_state, it calls notify_initial_state_done(skb,..) if cb->args[5]==1. If genlmsg_put() failed in notify_initial_state_done(), the skb will be freed by nlmsg_free(skb). Then get_initial_state will goto out and the freed skb will be used by return value skb->len, which is a uaf bug. What's worse, the same problem goes even further: skb can also be freed in the notify_*_state_change -> notify_*_state calls below. Thus 4 additional uaf bugs happened. My patch lets the problem callee functions: notify_initial_state_done and notify_*_state_change return an error code if errors happen. So that the error codes could be propagated and the uaf bugs can be avoid. v2 reports a compilation warning. This v3 fixed this warning and built successfully in my local environment with no additional warnings. v2: https://lore.kernel.org/patchwork/patch/1435218/
Quoted source text, attributed separately from HOL analysis.