Answer in brief
CVE-2026-31501 records a Critical severity (CVSS 9.8) vulnerability in net: ti: icssg-prueth: fix use-after-free of CPPI descriptor in RX path. 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 9.8. 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 | >=46eeb90f03e03d5e8f7f9f1f0eb0792104fc5f86 <c516c2e06fe580b8d38de60cd407072a5de81506 || >=46eeb90f03e03d5e8f7f9f1f0eb0792104fc5f86 <d5827316debcb677679bb014885d7be92c410e11 || >=46eeb90f03e03d5e8f7f9f1f0eb0792104fc5f86 <eb8c426c9803beb171f89d15fea17505eb517714 | c516c2e06fe580b8d38de60cd407072a5de81506, d5827316debcb677679bb014885d7be92c410e11, eb8c426c9803beb171f89d15fea17505eb517714 |
| Linux/Linuxgeneric | 6.15 | Not reported |
Published upstream
Apr 22, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Oct 15, 2026
In the Linux kernel, the following vulnerability has been resolved: net: ti: icssg-prueth: fix use-after-free of CPPI descriptor in RX path cppi5_hdesc_get_psdata() returns a pointer into the CPPI descriptor. In both emac_rx_packet() and emac_rx_packet_zc(), the descriptor is freed via k3_cppi_desc_pool_free() before the psdata pointer is used by emac_rx_timestamp(), which dereferences psdata[0] and psdata[1]. This constitutes a use-after-free on every received packet that goes through the timestamp path. Defer the descriptor free until after all accesses through the psdata pointer are complete. For emac_rx_packet(), move the free into the requeue label so both early-exit and success paths free the descriptor after all accesses are done. For emac_rx_packet_zc(), move the free to the end of the loop body after emac_dispatch_skb_zc() (which calls emac_rx_timestamp()) has returned.
Quoted source text, attributed separately from HOL analysis.