GHSA-8QFW-MMQM-63GQ
Vulnerability from github – Published: 2025-01-31 12:33 – Updated: 2025-11-03 21:32In the Linux kernel, the following vulnerability has been resolved:
pktgen: Avoid out-of-bounds access in get_imix_entries
Passing a sufficient amount of imix entries leads to invalid access to the pkt_dev->imix_entries array because of the incorrect boundary check.
UBSAN: array-index-out-of-bounds in net/core/pktgen.c:874:24 index 20 is out of range for type 'imix_pkt [20]' CPU: 2 PID: 1210 Comm: bash Not tainted 6.10.0-rc1 #121 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996) Call Trace: dump_stack_lvl lib/dump_stack.c:117 __ubsan_handle_out_of_bounds lib/ubsan.c:429 get_imix_entries net/core/pktgen.c:874 pktgen_if_write net/core/pktgen.c:1063 pde_write fs/proc/inode.c:334 proc_reg_write fs/proc/inode.c:346 vfs_write fs/read_write.c:593 ksys_write fs/read_write.c:644 do_syscall_64 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe arch/x86/entry/entry_64.S:130
Found by Linux Verification Center (linuxtesting.org) with SVACE.
[ fp: allow to fill the array completely; minor changelog cleanup ]
{
"affected": [],
"aliases": [
"CVE-2025-21680"
],
"database_specific": {
"cwe_ids": [
"CWE-129"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-01-31T12:15:29Z",
"severity": "HIGH"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\npktgen: Avoid out-of-bounds access in get_imix_entries\n\nPassing a sufficient amount of imix entries leads to invalid access to the\npkt_dev-\u003eimix_entries array because of the incorrect boundary check.\n\nUBSAN: array-index-out-of-bounds in net/core/pktgen.c:874:24\nindex 20 is out of range for type \u0027imix_pkt [20]\u0027\nCPU: 2 PID: 1210 Comm: bash Not tainted 6.10.0-rc1 #121\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996)\nCall Trace:\n\u003cTASK\u003e\ndump_stack_lvl lib/dump_stack.c:117\n__ubsan_handle_out_of_bounds lib/ubsan.c:429\nget_imix_entries net/core/pktgen.c:874\npktgen_if_write net/core/pktgen.c:1063\npde_write fs/proc/inode.c:334\nproc_reg_write fs/proc/inode.c:346\nvfs_write fs/read_write.c:593\nksys_write fs/read_write.c:644\ndo_syscall_64 arch/x86/entry/common.c:83\nentry_SYSCALL_64_after_hwframe arch/x86/entry/entry_64.S:130\n\nFound by Linux Verification Center (linuxtesting.org) with SVACE.\n\n[ fp: allow to fill the array completely; minor changelog cleanup ]",
"id": "GHSA-8qfw-mmqm-63gq",
"modified": "2025-11-03T21:32:30Z",
"published": "2025-01-31T12:33:03Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-21680"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/1a9b65c672ca9dc4ba52ca2fd54329db9580ce29"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/3450092cc2d1c311c5ea92a2486daa2a33520ea5"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/76201b5979768500bca362871db66d77cb4c225e"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/7cde21f52042aa2e29a654458166b873d2ae66b3"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/e5d24a7074dcd0c7e76b7e7e4efbbe7418d62486"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
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