{"id":"CVE-2026-68128","title":"ice: reject out-of-range ptype in ice_parser_profile_init","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nice: reject out-of-range ptype in ice_parser_profile_init\n\nset_bit(rslt->ptype, prof->ptypes) operates on a DECLARE_BITMAP of\nICE_FLOW_PTYPE_MAX (1024) bits. Nothing pr…","severity":"high","cvss":8.8,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","cvssSource":"cna","vendor":"Linux","product":"Linux","affected":["Linux >= e312b3a1e2092f612914dbc4fa5d96b4d8ff94ef < fe2f8d5a77adea38e889fe3d6cde1b76d4a635bf","Linux >= e312b3a1e2092f612914dbc4fa5d96b4d8ff94ef < 5e496f2b615cec4b45537cfb5b54f36a51dc8753","Linux >= e312b3a1e2092f612914dbc4fa5d96b4d8ff94ef < 33cc15aaf2491166dddc018b24b3b7db53ec01b2","Linux >= e312b3a1e2092f612914dbc4fa5d96b4d8ff94ef < 59abb87159c53605c063f6e2ceb215b5eba43ee6","Linux 6.12"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-10-16T15:44:20.996927Z"},"published":"2026-08-10","updated":"2026-10-16","sourceUpdated":"2026-10-16T15:52:58.450Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-68128","references":[{"url":"https://git.kernel.org/stable/c/fe2f8d5a77adea38e889fe3d6cde1b76d4a635bf"},{"url":"https://git.kernel.org/stable/c/5e496f2b615cec4b45537cfb5b54f36a51dc8753"},{"url":"https://git.kernel.org/stable/c/33cc15aaf2491166dddc018b24b3b7db53ec01b2"},{"url":"https://git.kernel.org/stable/c/59abb87159c53605c063f6e2ceb215b5eba43ee6"}],"tags":["cve.org"],"epss":0.00138,"epssPercentile":0.02841,"ingestedAt":"2026-10-16T17:24:46.841Z","slug":"CVE-2026-68128","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nice: reject out-of-range ptype in ice_parser_profile_init\n\nset_bit(rslt->ptype, prof->ptypes) operates on a DECLARE_BITMAP of\nICE_FLOW_PTYPE_MAX (1024) bits. Nothing prevents a malicious VF from\nproviding ptype >= 1024 through VIRTCHNL, resulting in a write past\nthe end of the bitmap and a kernel page fault.\n\nReproduced with a custom kernel module injecting a crafted\nVIRTCHNL_OP_ADD_RSS_CFG on E810-C QSFP (8086:1592),\nFW 4.91 0x800214af 1.3909.0, ICE COMMS DDP 1.3.53.0,\nkernel 7.1.0-rc1.\n\ncrash_parser: ice_parser_profile_init @ ffffffffc0d61b60\ncrash_parser: setting ptype=0xffff (max valid=1023)\ncrash_parser: calling ice_parser_profile_init -- expect OOB crash!\nBUG: kernel NULL pointer dereference, address: 0000000000000000\nOops: Oops: 0002 [#1] SMP NOPTI\nCPU: 56 UID: 0 PID: 165011 Comm: insmod Kdump: loaded Tainted: G S U OE 7.1.0-rc1 #1\nHardware name: Intel Corporation S2600BPB/S2600BPB\nRIP: 0010:ice_parser_profile_init+0x2d/0x1d0 [ice]\nCall Trace:\n <TASK>\n ? __pfx_ice_parser_profile_init+0x10/0x10 [ice]\n crash_init+0x127/0xff0 [crash_parser]\n do_one_initcall+0x45/0x310\n do_init_module+0x64/0x270\n init_module_from_file+0xcc/0xf0\n idempotent_init_module+0x17b/0x280\n __x64_sys_finit_module+0x6e/0xe0\n\nBail out early with -EINVAL when ptype is out of range.\n\n## Affected\n\n- `Linux >= e312b3a1e2092f612914dbc4fa5d96b4d8ff94ef < fe2f8d5a77adea38e889fe3d6cde1b76d4a635bf`\n- `Linux >= e312b3a1e2092f612914dbc4fa5d96b4d8ff94ef < 5e496f2b615cec4b45537cfb5b54f36a51dc8753`\n- `Linux >= e312b3a1e2092f612914dbc4fa5d96b4d8ff94ef < 33cc15aaf2491166dddc018b24b3b7db53ec01b2`\n- `Linux >= e312b3a1e2092f612914dbc4fa5d96b4d8ff94ef < 59abb87159c53605c063f6e2ceb215b5eba43ee6`\n- `Linux 6.12`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":48,"depthScoreParts":{"impact":48.4,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}