CVE-2025-21680
- Source
- https://cve.org/CVERecord?id=CVE-2025-21680
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-21680.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2025-21680
- Downstream
- Related
- Published
- 2025-01-31T11:25:40Z
- Modified
- 2026-08-12T03:51:49Z
- Severity
-
- 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- pktgen: Avoid out-of-bounds access in get_imix_entries
- Details
-
In 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 ]
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/21xxx/CVE-2025-21680.json" }- References
-
- https://git.kernel.org/stable/c/1a9b65c672ca9dc4ba52ca2fd54329db9580ce29
- https://git.kernel.org/stable/c/3450092cc2d1c311c5ea92a2486daa2a33520ea5
- https://git.kernel.org/stable/c/76201b5979768500bca362871db66d77cb4c225e
- https://git.kernel.org/stable/c/7cde21f52042aa2e29a654458166b873d2ae66b3
- https://git.kernel.org/stable/c/e5d24a7074dcd0c7e76b7e7e4efbbe7418d62486
- https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/21xxx/CVE-2025-21680.json
- https://nvd.nist.gov/vuln/detail/CVE-2025-21680
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced52a62f8603f97e720882c8f5aff2767ac6a11d5fFixed3450092cc2d1c311c5ea92a2486daa2a33520ea5Fixede5d24a7074dcd0c7e76b7e7e4efbbe7418d62486Fixed7cde21f52042aa2e29a654458166b873d2ae66b3Fixed1a9b65c672ca9dc4ba52ca2fd54329db9580ce29Fixed76201b5979768500bca362871db66d77cb4c225e