7.8

CVE-2026-74305

bpf: Tighten cgroup storage cookie checks for prog arrays

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

bpf: Tighten cgroup storage cookie checks for prog arrays

The fix in commit abad3d0bad72 ("bpf: Fix oob access in cgroup local
storage") is still incomplete. The prog-array compatibility check
treats a program with no cgroup storage as compatible with any stored
storage cookie. This allows a storage-less program to bridge a tail
call chain between an entry program and a storage-using callee even
though cgroup local storage at runtime still follows the caller's
context, that is, A -> B(no storage) -> C(storage) path.

Requiring exact cookie equality would break the legitimate case of a
storage-less leaf program being tail called from a storage-using one.
Instead, only accept a zero storage cookie if the program cannot
perform tail calls itself. This keeps A -> B(no storage) working
while rejecting the A -> B(no storage) -> C(storage) bridge.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerLinux
≫
Produkt Linux
Default Statusunaffected
Version c1c74584b9b4043c52e41fec415226e582d266a3
Version < 87177497cca90bf4fcfb759eb898560eb5b46a10
Status affected
Version 66da7cee78590259b400e51a70622ccd41da7bb2
Version < 1c762d28698483ce7c372091f34d86e4d4828652
Status affected
Version 7acfa07c585e3d7a64654d38f0a5c762877d0b9b
Version < eb73056ce2a6f101ddd3bdba89af6b24ebffff85
Status affected
Version 41688d1fc5d163a6c2c0e95c0419e2cb31a44648
Version < 9ca06849c4239aa2d580c54651f8588c51cb398b
Status affected
Version abad3d0bad72a52137e0c350c59542d75ae4f513
Version < 46fbafe3d2d569d828e8d24a7dbe1659f63685cf
Status affected
Version abad3d0bad72a52137e0c350c59542d75ae4f513
Version < cb22dc79528eb26a46d346c3118dbd6b14c70609
Status affected
Version abad3d0bad72a52137e0c350c59542d75ae4f513
Version < 10627ddc0167aab5c1c390a10ef461e9937aba08
Status affected
Version 19341d5c59e8c7e8528e40f8663e99d67810473c
Status affected
Version 5.15.192
Version < 5.15.212
Status affected
Version 6.1.151
Version < 6.1.178
Status affected
Version 6.6.105
Version < 6.6.145
Status affected
Version 6.12.46
Version < 6.12.97
Status affected
Version 6.16.1
Version < 6.17
Status affected
HerstellerLinux
≫
Produkt Linux
Default Statusaffected
Version 6.17
Status affected
Version 0
Version < 6.17
Status unaffected
Version <= 5.15.*
Version 5.15.212
Status unaffected
Version <= 6.1.*
Version 6.1.178
Status unaffected
Version <= 6.6.*
Version 6.6.145
Status unaffected
Version <= 6.12.*
Version 6.12.97
Status unaffected
Version <= 6.18.*
Version 6.18.40
Status unaffected
Version <= 7.1.*
Version 7.1.5
Status unaffected
Version <= *
Version 7.2
Status unaffected
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.13% 0.03
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/87177497cca90bf4fcfb759eb898560eb5b46a10
https://git.kernel.org/stable/c/1c762d28698483ce7c372091f34d86e4d4828652
https://git.kernel.org/stable/c/eb73056ce2a6f101ddd3bdba89af6b24ebffff85
https://git.kernel.org/stable/c/9ca06849c4239aa2d580c54651f8588c51cb398b
https://git.kernel.org/stable/c/46fbafe3d2d569d828e8d24a7dbe1659f63685cf
https://git.kernel.org/stable/c/cb22dc79528eb26a46d346c3118dbd6b14c70609
https://git.kernel.org/stable/c/10627ddc0167aab5c1c390a10ef461e9937aba08