Answer in brief
CVE-2026-52917 records a High severity (CVSS 7.1) vulnerability in sctp: diag: reject stale associations in dump_one path. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), Siemens/SIMATIC S7-1500 TM MFP - GNU/Linux subsystem (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 7.1. 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), Siemens/SIMATIC S7-1500 TM MFP - GNU/Linux subsystem (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:7.1:rc1:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:7.1:rc3:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:7.1:rc4:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:7.1:rc5:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:7.1:rc6:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=8f840e47f190cbe61a96945c13e9551048d42cef <6657af827e21883ae90693e42e7f59a6aab690b5 || >=8f840e47f190cbe61a96945c13e9551048d42cef <b2be72d401833194917e44fbd8d8144bb4f2db16 || >=8f840e47f190cbe61a96945c13e9551048d42cef <5425de8bd6e9fe5bd67d158e3348171ae7510117 || >=8f840e47f190cbe61a96945c13e9551048d42cef <e97c2a535e23ed0fdd2660993fb3f10d9535c9bc || >=8f840e47f190cbe61a96945c13e9551048d42cef <480f754580b5686b928977d16a59f20cef83ff01 || >=8f840e47f190cbe61a96945c13e9551048d42cef <78c4f964b2f94e405721c093773f6250e1e676b2 || >=8f840e47f190cbe61a96945c13e9551048d42cef <f5af203dec6e0e7a6090fcc2130e9f3901bfc84d || >=8f840e47f190cbe61a96945c13e9551048d42cef <5eba3e48d78edd7551b992cb7ba687019b3a78da | 6657af827e21883ae90693e42e7f59a6aab690b5, b2be72d401833194917e44fbd8d8144bb4f2db16, 5425de8bd6e9fe5bd67d158e3348171ae7510117, e97c2a535e23ed0fdd2660993fb3f10d9535c9bc, 480f754580b5686b928977d16a59f20cef83ff01, 78c4f964b2f94e405721c093773f6250e1e676b2, f5af203dec6e0e7a6090fcc2130e9f3901bfc84d, 5eba3e48d78edd7551b992cb7ba687019b3a78da |
| Linux/Linuxgeneric | 4.7 | Not reported |
| Siemens/SIMATIC S7-1500 TM MFP - GNU/Linux subsystemgeneric | >=0 <* | * |
Published upstream
Jun 24, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 19, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jun 24, 2026
In the Linux kernel, the following vulnerability has been resolved: sctp: diag: reject stale associations in dump_one path The SCTP exact sock_diag lookup can hold a transport reference, block on lock_sock(sk), and then resume after sctp_association_free() has marked the association dead and freed its bind address list. When that happens, inet_assoc_attr_size() and inet_diag_msg_sctpasoc_fill() can still dereference association state that is no longer valid for reporting. In particular, inet_diag_msg_sctpasoc_fill() may read an empty bind-address list as a real sctp_sockaddr_entry and trigger an out-of-bounds read from unrelated association memory. Reject the association after taking the socket lock if it has been reaped or detached from the endpoint, and report the lookup as stale. This keeps the exact dump-one path from formatting torn association state.
Quoted source text, attributed separately from HOL analysis.