7.8

CVE-2026-74404

crypto: ccp - Fix snp_filter_reserved_mem_regions() off-by-one

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

crypto: ccp - Fix snp_filter_reserved_mem_regions() off-by-one

Sashiko notes:

> regarding the bounds check in snp_filter_reserved_mem_regions()
> called via walk_iomem_res_desc(): does the check
> if ((range_list->num_elements * 16 + 8) > PAGE_SIZE)
> allow an off-by-one heap buffer overflow?
>
> If range_list->num_elements is 255, 255 * 16 + 8 = 4088, which is <= 4096.
> Writing range->base (8 bytes) fills 4088-4095, but writing range->page_count
> (4 bytes) would write to 4096-4099, overflowing the kzalloc-allocated
> PAGE_SIZE buffer.

Fix this by accounting for the entry about to be written to, in addition to
the entries that are already allocated.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerLinux
≫
Produkt Linux
Default Statusunaffected
Version 1ca5614b84eed5904f65f143e0e7aaab0ac4c6b2
Version < 830c1f3e71989448652973375ef5e39b6ede47a3
Status affected
Version 1ca5614b84eed5904f65f143e0e7aaab0ac4c6b2
Version < c5c79d92da0f9a09f48be5e2aabed2d6d1a96294
Status affected
Version 1ca5614b84eed5904f65f143e0e7aaab0ac4c6b2
Version < af7341616b742ad2c374a90998bd650a035f694d
Status affected
Version 1ca5614b84eed5904f65f143e0e7aaab0ac4c6b2
Version < 1b864b6cb213bbd7b406e9b2e98c962077f300df
Status affected
HerstellerLinux
≫
Produkt Linux
Default Statusaffected
Version 6.9
Status affected
Version 0
Version < 6.9
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 0.14% 0.04
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/830c1f3e71989448652973375ef5e39b6ede47a3
https://git.kernel.org/stable/c/c5c79d92da0f9a09f48be5e2aabed2d6d1a96294
https://git.kernel.org/stable/c/af7341616b742ad2c374a90998bd650a035f694d
https://git.kernel.org/stable/c/1b864b6cb213bbd7b406e9b2e98c962077f300df