7.8

CVE-2026-90210

bpf: Fix UAF in bpf_trampoline_multi_attach_free on update failure

In the Linux kernel, the following vulnerability has been resolved:

bpf: Fix UAF in bpf_trampoline_multi_attach_free on update failure

When bpf_trampoline_update() fails before modify_fentry_multi()/
unregister_fentry_multi() is called, cur_image is unchanged
(cur_image == old_image) and ftrace still calls into it.  Freeing
old_image in that case causes a UAF.

Only free old_image when it differs from cur_image.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerLinux
≫
Produkt Linux
Default Statusunaffected
Version aef4dfa790b22d8052cfb78044eadbe03c876c39
Version < 65c3939656fd7848e9274faa07c26748b5bf049c
Status affected
Version aef4dfa790b22d8052cfb78044eadbe03c876c39
Version < 0253073fb7d79a2dd2eae9581ea16db2aef395a6
Status affected
HerstellerLinux
≫
Produkt Linux
Default Statusaffected
Version 7.2
Status affected
Version 0
Version < 7.2
Status unaffected
Version <= 7.2.*
Version 7.2.6
Status unaffected
Version <= *
Version 7.3-rc1
Status unaffected
VulnDex Vulnerability Enrichment
Diese Information steht angemeldeten Benutzern zur Verfügung. Login Login
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.15% 0.049
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
416baaa9-dc9f-4396-8d5f-8c081fb06d67 7.8 1.8 5.9
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Es wurden noch keine Informationen zu CWE veröffentlicht.
https://git.kernel.org/stable/c/65c3939656fd7848e9274faa07c26748b5bf049c
https://git.kernel.org/stable/c/0253073fb7d79a2dd2eae9581ea16db2aef395a6