[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"repo-stars":3,"vuln-DEBIAN-CVE-2026-31570":6},{"stargazers_count":4,"fetched_at":5},7,"2026-07-31T03:17:55.401Z",{"id":7,"descriptions":8,"cisa":9,"weaknesses":10,"exploits":11,"aliases":12,"duplicate_of":9,"upstream":13,"downstream":16,"duplicates":17,"related":18,"reserved_at":9,"published_at":19,"modified_at":20,"state":9,"summary":21,"references_raw":23,"kevs":30,"epss":9,"epss_history":31,"metrics":32,"affected":39},"DEBIAN-CVE-2026-31570","In the Linux kernel, the following vulnerability has been resolved:  can: gw: fix OOB heap access in cgw_csum_crc8_rel()  cgw_csum_crc8_rel() correctly computes bounds-safe indices via calc_idx():      int from = calc_idx(crc8->from_idx, cf->len);     int to   = calc_idx(crc8->to_idx,   cf->len);     int res  = calc_idx(crc8->result_idx, cf->len);      if (from \u003C 0 || to \u003C 0 || res \u003C 0)         return;  However, the loop and the result write then use the raw s8 fields directly instead of the computed variables:      for (i = crc8->from_idx; ...)        /* BUG: raw negative index */     cf->data[crc8->result_idx] = ...;    /* BUG: raw negative index */  With from_idx = to_idx = result_idx = -64 on a 64-byte CAN FD frame, calc_idx(-64, 64) = 0 so the guard passes, but the loop iterates with i = -64, reading cf->data[-64], and the write goes to cf->data[-64]. This write might end up to 56 (7.0-rc) or 40 (\u003C= 6.19) bytes before the start of the canfd_frame on the heap.  The companion function cgw_csum_xor_rel() uses `from`/`to`/`res` correctly throughout; fix cgw_csum_crc8_rel() to match.  Confirmed with KASAN on linux-7.0-rc2:   BUG: KASAN: slab-out-of-bounds in cgw_csum_crc8_rel+0x515/0x5b0   Read of size 1 at addr ffff8880076619c8 by task poc_cgw_oob/62  To configure the can-gw crc8 checksums CAP_NET_ADMIN is needed.",null,[],[],[],[14],{"_key":15},"CVE-2026-31570",[],[],[],"2026-04-24T15:16:31.520Z","2026-06-15T19:06:16.290115177Z",{"cisa_kev":22,"cisa_ransomware":22,"cisa_vendor":9,"epss_severity":9,"epss_score":9,"severity":9,"severity_score":9,"severity_version":9,"severity_source":9,"severity_vector":9,"severity_status":9},false,[24],{"url":25,"sources":26,"tags":28},"https://security-tracker.debian.org/tracker/CVE-2026-31570",[27],"osv_debian",[29],"Advisory",[],[],[33],{"source":27,"cvss_v2_0":9,"cvss_v3_0":9,"cvss_v3_1":34,"cvss_v4_0":9},{"baseScore":35,"baseSeverity":9,"vectorString":36,"impactScore":37,"exploitabilityScore":38},8.8,"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",9.8,7.2,[40,65],{"ecosystem":41,"name":42,"vendor":43,"product":42,"cpe_part":9,"purl_type":44,"purl_namespace":43,"purl_name":42,"source":9,"versions":45},"Debian","linux","debian","deb",[46,50,51,52,56,59,62],{"version":47,"is_range":48,"range_type":49,"version_start":9,"version_start_type":9,"version_end":9,"version_end_type":9,"fixed_in":9},"all",true,"ecosystem",{"version":47,"is_range":48,"range_type":49,"version_start":9,"version_start_type":9,"version_end":9,"version_end_type":9,"fixed_in":9},{"version":47,"is_range":48,"range_type":49,"version_start":9,"version_start_type":9,"version_end":9,"version_end_type":9,"fixed_in":9},{"version":53,"is_range":48,"range_type":49,"version_start":9,"version_start_type":9,"version_end":54,"version_end_type":55,"fixed_in":9},"lt5_10_257_1","5.10.257-1","excluding",{"version":57,"is_range":48,"range_type":49,"version_start":9,"version_start_type":9,"version_end":58,"version_end_type":55,"fixed_in":9},"lt6_1_170_1","6.1.170-1",{"version":60,"is_range":48,"range_type":49,"version_start":9,"version_start_type":9,"version_end":61,"version_end_type":55,"fixed_in":9},"lt6_12_85_1","6.12.85-1",{"version":63,"is_range":48,"range_type":49,"version_start":9,"version_start_type":9,"version_end":64,"version_end_type":55,"fixed_in":9},"lt6_19_11_1","6.19.11-1",{"ecosystem":41,"name":66,"vendor":43,"product":66,"cpe_part":9,"purl_type":44,"purl_namespace":43,"purl_name":66,"source":9,"versions":67},"linux-6.1",[68],{"version":69,"is_range":48,"range_type":49,"version_start":9,"version_start_type":9,"version_end":70,"version_end_type":55,"fixed_in":9},"lt6_1_170_1~deb11u1","6.1.170-1~deb11u1"]