Answer in brief
CVE-2022-48872 records a High severity (CVSS 7.8) vulnerability in misc: fastrpc: Fix use-after-free race condition for maps. 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.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:6.2:rc1:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:6.2:rc2:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:6.2:rc3:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:6.2:rc4:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=c68cfb718c8f97b7f7a50ed66be5feb42d0c8988 <556dfdb226ce1e5231d8836159b23f8bb0395bf4 || >=c68cfb718c8f97b7f7a50ed66be5feb42d0c8988 <b171d0d2cf1b8387c72c8d325c5d5746fa271e39 || >=c68cfb718c8f97b7f7a50ed66be5feb42d0c8988 <61a0890cb95afec5c8a2f4a879de2b6220984ef1 || >=c68cfb718c8f97b7f7a50ed66be5feb42d0c8988 <079c78c68714f7d8d58e66c477b0243b31806907 || >=c68cfb718c8f97b7f7a50ed66be5feb42d0c8988 <96b328d119eca7563c1edcc4e1039a62e6370ecb | 556dfdb226ce1e5231d8836159b23f8bb0395bf4, b171d0d2cf1b8387c72c8d325c5d5746fa271e39, 61a0890cb95afec5c8a2f4a879de2b6220984ef1, 079c78c68714f7d8d58e66c477b0243b31806907, 96b328d119eca7563c1edcc4e1039a62e6370ecb |
| Linux/Linuxgeneric | 5.1 | Not reported |
Published upstream
Aug 21, 2024
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 4, 2026
In the Linux kernel, the following vulnerability has been resolved: misc: fastrpc: Fix use-after-free race condition for maps It is possible that in between calling fastrpc_map_get() until map->fl->lock is taken in fastrpc_free_map(), another thread can call fastrpc_map_lookup() and get a reference to a map that is about to be deleted. Rewrite fastrpc_map_get() to only increase the reference count of a map if it's non-zero. Propagate this to callers so they can know if a map is about to be deleted. Fixes this warning: refcount_t: addition on 0; use-after-free. WARNING: CPU: 5 PID: 10100 at lib/refcount.c:25 refcount_warn_saturate ... Call trace: refcount_warn_saturate [fastrpc_map_get inlined] [fastrpc_map_lookup inlined] fastrpc_map_create fastrpc_internal_invoke fastrpc_device_ioctl __arm64_sys_ioctl invoke_syscall
Quoted source text, attributed separately from HOL analysis.