תיאור (מקור, אנגלית)
A use-after-free vulnerability in the Linux kernel's net/sched: sch_hfsc (HFSC qdisc traffic control) component can be exploited to achieve local privilege escalation. If a class with a link-sharing curve (i.e. with the HFSC_FSC flag set) has a parent without a link-sharing curve, then init_vf() will call vttree_insert() on the parent, but vttree_remove() will be skipped in update_vf(). This leaves a dangling pointer that can cause a use-after-free. We recommend upgrading past commit b3d26c5702c7d6c45456326e56d2ccf3f103e60f.
מוצרים מושפעים
linux: linux kernel; debian: debian linux
קישורים10
- git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/com… Issue TrackingMailing ListPatchVendor Advisory
- kernel.dance/b3d26c5702c7d6c45456326e56d2ccf3f103e60f PatchVendor Advisory
- git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/com… Issue TrackingMailing ListPatchVendor Advisory
- kernel.dance/b3d26c5702c7d6c45456326e56d2ccf3f103e60f PatchVendor Advisory
- packetstormsecurity.com/files/175963/Kernel-Live-Patch-Securit… Third Party AdvisoryVDB Entry
- lists.debian.org/debian-lts-announce/2023/10/msg00027.html Mailing ListThird Party Advisory
- lists.debian.org/debian-lts-announce/2024/01/msg00004.html Mailing ListThird Party Advisory
- packetstormsecurity.com/files/175963/Kernel-Live-Patch-Securit… Third Party AdvisoryVDB Entry
- lists.debian.org/debian-lts-announce/2023/10/msg00027.html Mailing ListThird Party Advisory
- lists.debian.org/debian-lts-announce/2024/01/msg00004.html Mailing ListThird Party Advisory
מדדים
- CVSS 3.1
-
7.8
HIGH
מקור הציון: NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - EPSS — סבירות ניצול
- 0% אחוזון 21 · נכון ל-5 בנובמבר 2026
- CWE
- CWE-416
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