GHSA-4GJP-76HX-W497
Vulnerability from github – Published: 2026-08-10 15:33 – Updated: 2026-08-14 00:31In the Linux kernel, the following vulnerability has been resolved:
ice: reject out-of-range ptype in ice_parser_profile_init
set_bit(rslt->ptype, prof->ptypes) operates on a DECLARE_BITMAP of ICE_FLOW_PTYPE_MAX (1024) bits. Nothing prevents a malicious VF from providing ptype >= 1024 through VIRTCHNL, resulting in a write past the end of the bitmap and a kernel page fault.
Reproduced with a custom kernel module injecting a crafted VIRTCHNL_OP_ADD_RSS_CFG on E810-C QSFP (8086:1592), FW 4.91 0x800214af 1.3909.0, ICE COMMS DDP 1.3.53.0, kernel 7.1.0-rc1.
crash_parser: ice_parser_profile_init @ ffffffffc0d61b60 crash_parser: setting ptype=0xffff (max valid=1023) crash_parser: calling ice_parser_profile_init -- expect OOB crash! BUG: kernel NULL pointer dereference, address: 0000000000000000 Oops: Oops: 0002 [#1] SMP NOPTI CPU: 56 UID: 0 PID: 165011 Comm: insmod Kdump: loaded Tainted: G S U OE 7.1.0-rc1 #1 Hardware name: Intel Corporation S2600BPB/S2600BPB RIP: 0010:ice_parser_profile_init+0x2d/0x1d0 [ice] Call Trace: ? __pfx_ice_parser_profile_init+0x10/0x10 [ice] crash_init+0x127/0xff0 [crash_parser] do_one_initcall+0x45/0x310 do_init_module+0x64/0x270 init_module_from_file+0xcc/0xf0 idempotent_init_module+0x17b/0x280 __x64_sys_finit_module+0x6e/0xe0
Bail out early with -EINVAL when ptype is out of range.
{
"affected": [],
"aliases": [
"CVE-2026-68128"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-08-10T13:19:58Z",
"severity": "HIGH"
},
"details": "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-\u003eptype, prof-\u003eptypes) operates on a DECLARE_BITMAP of\nICE_FLOW_PTYPE_MAX (1024) bits. Nothing prevents a malicious VF from\nproviding ptype \u003e= 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 \u003cTASK\u003e\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.",
"id": "GHSA-4gjp-76hx-w497",
"modified": "2026-08-14T00:31:51Z",
"published": "2026-08-10T15:33:37Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-68128"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/33cc15aaf2491166dddc018b24b3b7db53ec01b2"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/59abb87159c53605c063f6e2ceb215b5eba43ee6"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/5e496f2b615cec4b45537cfb5b54f36a51dc8753"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/fe2f8d5a77adea38e889fe3d6cde1b76d4a635bf"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
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