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CVE-2025-68815: Linux, грешка в паметта

7.8

CVSS 3.1

Няма данни

Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)

Няма потвърждение

Атакува се

Няма данни

Време до експлоатация

Атакува се локално, без особени условия, с обикновен потребителски вход и без действие от потребителя.

CVE радар: още уязвимости от този вид

  • Експлоатация: няма данни за експлоатация
  • Атаката не може да се автоматизира

Описание

Оригинално описание

In the Linux kernel, the following vulnerability has been resolved: net/sched: ets: Remove drr class from the active list if it changes to strict Whenever a user issues an ets qdisc change command, transforming a drr class into a strict one, the ets code isn't checking whether that class was in the active list and removing it. This means that, if a user changes a strict class (which was in the active list) back to a drr one, that class will be added twice to the active list [1]. Doing so with the following commands: tc qdisc add dev lo root handle 1: ets bands 2 strict 1 tc qdisc add dev lo parent 1:2 handle 20: \ tbf rate 8bit burst 100b latency 1s tc filter add dev lo parent 1: basic classid 1:2 ping -c1 -W0.01 -s 56 127.0.0.1 tc qdisc change dev lo root handle 1: ets bands 2 strict 2 tc qdisc change dev lo root handle 1: ets bands 2 strict 1 ping -c1 -W0.01 -s 56 127.0.0.1 Will trigger the following splat with list debug turned on: [ 59.279014][ T365] ------------[ cut here ]------------ [ 59.279452][ T365] list_add double add: new=ffff88801d60e350, prev=ffff88801d60e350, next=ffff88801d60e2c0. [ 59.280153][ T365] WARNING: CPU: 3 PID: 365 at lib/list_debug.c:35 __list_add_valid_or_report+0x17f/0x220 [ 59.280860][ T365] Modules linked in: [ 59.281165][ T365] CPU: 3 UID: 0 PID: 365 Comm: tc Not tainted 6.18.0-rc7-00105-g7e9f13163c13-dirty #239 PREEMPT(voluntary) [ 59.281977][ T365] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 59.282391][ T365] RIP: 0010:__list_add_valid_or_report+0x17f/0x220 [ 59.282842][ T365] Code: 89 c6 e8 d4 b7 0d ff 90 0f 0b 90 90 31 c0 e9 31 ff ff ff 90 48 c7 c7 e0 a0 22 9f 48 89 f2 48 89 c1 4c 89 c6 e8 b2 b7 0d ff 90 <0f> 0b 90 90 31 c0 e9 0f ff ff ff 48 89 f7 48 89 44 24 10 4c 89 44 ... [ 59.288812][ T365] Call Trace: [ 59.289056][ T365] <TASK> [ 59.289224][ T365] ? srso_alias_return_thunk+0x5/0xfbef5 [ 59.289546][ T365] ets_qdisc_change+0xd2b/0x1e80 [ 59.289891][ T365] ? __lock_ac

Засегнати продукти

  • Linux Linux: f517335a61ff8037b18ba1b0a002c1f82926a934 преди 58fdce6bc005e964f1dbc3ca716f5fe0f68839a2; cd9b50adc6bb9ad3f7d244590a389522215865c4 преди 02783a37cb1c0a2bd9fcba4ff1b81e6e209c7d87; cd9b50adc6bb9ad3f7d244590a389522215865c4 преди 8067db5c95aab9461d23117679338cd8869831fa; cd9b50adc6bb9ad3f7d244590a389522215865c4 преди 2f125ebe47d6369e562f3cbd9b6227cff51eaf34; cd9b50adc6bb9ad3f7d244590a389522215865c4 преди cca2ed931b734fe48139bc6f020e47367346630f; cd9b50adc6bb9ad3f7d244590a389522215865c4 преди 43d9a530c8c094d137159784e7c951c65f11ec6c; cd9b50adc6bb9ad3f7d244590a389522215865c4 преди b1e125ae425aba9b45252e933ca8df52a843ec70; d05330672afe2e142ba97e63bd7c1faef76781bb; 5.10.62 преди 5.10.248; 5.13.14 преди 5.14
  • Linux Linux: 5.14; преди 5.14; 5.10.248 до 5.10.*; 5.15.198 до 5.15.*; 6.1.160 до 6.1.*; 6.6.120 до 6.6.*; 6.12.64 до 6.12.*; 6.18.3 до 6.18.*; от 6.19 нататък

Вид слабост

История

  • 13 януари 2026 Публикувано

Други уязвимости в Linux Linux

Първоизточници

CVE-2025-68815: Linux, грешка в паметта | freedomonline.bg