Answer in brief
CVE-2026-53160 records a High severity (CVSS 7.8) vulnerability in misc: fastrpc: fix use-after-free race in fastrpc_map_create. 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 | >=0b70ec82b309a4093106ff399da1911ad23b52d3 <0a3b87293fbd34fda651e6aead9964f84b893962 || >=d7513b47082c08105e837b06cebeb3f07a5fa56f <8b080c89183196fd3e49212f2a1a1c4a29335b9c || >=802359a52676176b18713e33caa17572ad009057 <5b0166112019d1dce30b976ab28fd67f7f0be532 || >=10df039834f84a297c72ec962c0f9b7c8c5ca31a <992f121796b7ca83a5a8b93da24e971363206218 || >=10df039834f84a297c72ec962c0f9b7c8c5ca31a <f20f6512ecb75c816e0debf4551a138f098615c4 || >=10df039834f84a297c72ec962c0f9b7c8c5ca31a <07ebe87915d8accdaba20c4f88c5ae430fe62fbb || f3f59bab68e9bc714f757ab22f3fb36153014043 || >=6.1.156 <6.1.176 || >=6.6.112 <6.6.143 || >=6.12.53 <6.12.94 || >=6.17.3 <6.18 | 0a3b87293fbd34fda651e6aead9964f84b893962, 8b080c89183196fd3e49212f2a1a1c4a29335b9c, 5b0166112019d1dce30b976ab28fd67f7f0be532, 992f121796b7ca83a5a8b93da24e971363206218, f20f6512ecb75c816e0debf4551a138f098615c4, 07ebe87915d8accdaba20c4f88c5ae430fe62fbb, 6.1.176, 6.6.143, 6.12.94, 6.18 |
| Linux/Linuxgeneric | 6.18 | Not reported |
Published upstream
Jun 25, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jun 25, 2026
In the Linux kernel, the following vulnerability has been resolved: misc: fastrpc: fix use-after-free race in fastrpc_map_create fastrpc_map_lookup returns a raw pointer after releasing fl->lock. The caller fastrpc_map_create then calls fastrpc_map_get (kref_get_unless_zero) on this unprotected pointer. A concurrent MEM_UNMAP can free the map between the lock release and the kref operation, resulting in a use-after-free on the freed slab object. Restore the take_ref parameter to fastrpc_map_lookup so the reference is acquired atomically under fl->lock before the pointer is exposed to the caller.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2026-53160 records a High severity (CVSS 7.8) vulnerability in misc: fastrpc: fix use-after-free race in fastrpc_map_create. 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 | >=0b70ec82b309a4093106ff399da1911ad23b52d3 <0a3b87293fbd34fda651e6aead9964f84b893962 || >=d7513b47082c08105e837b06cebeb3f07a5fa56f <8b080c89183196fd3e49212f2a1a1c4a29335b9c || >=802359a52676176b18713e33caa17572ad009057 <5b0166112019d1dce30b976ab28fd67f7f0be532 || >=10df039834f84a297c72ec962c0f9b7c8c5ca31a <992f121796b7ca83a5a8b93da24e971363206218 || >=10df039834f84a297c72ec962c0f9b7c8c5ca31a <f20f6512ecb75c816e0debf4551a138f098615c4 || >=10df039834f84a297c72ec962c0f9b7c8c5ca31a <07ebe87915d8accdaba20c4f88c5ae430fe62fbb || f3f59bab68e9bc714f757ab22f3fb36153014043 || >=6.1.156 <6.1.176 || >=6.6.112 <6.6.143 || >=6.12.53 <6.12.94 || >=6.17.3 <6.18 | 0a3b87293fbd34fda651e6aead9964f84b893962, 8b080c89183196fd3e49212f2a1a1c4a29335b9c, 5b0166112019d1dce30b976ab28fd67f7f0be532, 992f121796b7ca83a5a8b93da24e971363206218, f20f6512ecb75c816e0debf4551a138f098615c4, 07ebe87915d8accdaba20c4f88c5ae430fe62fbb, 6.1.176, 6.6.143, 6.12.94, 6.18 |
| Linux/Linuxgeneric | 6.18 | Not reported |
Published upstream
Jun 25, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jun 25, 2026
In the Linux kernel, the following vulnerability has been resolved: misc: fastrpc: fix use-after-free race in fastrpc_map_create fastrpc_map_lookup returns a raw pointer after releasing fl->lock. The caller fastrpc_map_create then calls fastrpc_map_get (kref_get_unless_zero) on this unprotected pointer. A concurrent MEM_UNMAP can free the map between the lock release and the kref operation, resulting in a use-after-free on the freed slab object. Restore the take_ref parameter to fastrpc_map_lookup so the reference is acquired atomically under fl->lock before the pointer is exposed to the caller.
Quoted source text, attributed separately from HOL analysis.