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CVE-2026-98224

mm/vma: correctly unaccount on mmap_prepare() failure

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

mm/vma: correctly unaccount on mmap_prepare() failure

__mmap_setup() accounts memory for relevant mappings via:

security_vm_enough_memory_mm()
  -> __vm_enough_memory()
    -> vm_acct_memory()

If __mmap_setup() fails, this indicates that this accounting did not take
place, and thus it's appropriate for __mmap_region() to jump to
abort_munmap.

However if call_mmap_prepare() fails, it also jumps there and any accounted
memory is not correctly unaccounted.

Fix this by handling each error separately.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerLinux
≫
Produkt Linux
Default Statusunaffected
Version c84bf6dd2b836b49bb2662668ff1692350d28236
Version < fb5400bff669c8bad3d4ec09287d9b461e89e5f1
Status affected
Version c84bf6dd2b836b49bb2662668ff1692350d28236
Version < 8fdc521d438fbf0d22c13d51d55d5dd82d7202b2
Status affected
Version c84bf6dd2b836b49bb2662668ff1692350d28236
Version < 6cc27d82196385fe06853319f74312a7d8019726
Status affected
HerstellerLinux
≫
Produkt Linux
Default Statusaffected
Version 6.16
Status affected
Version 0
Version < 6.16
Status unaffected
Version <= 6.18.*
Version 6.18.54
Status unaffected
Version <= 7.2.*
Version 7.2.8
Status unaffected
Version <= *
Version 7.3-rc4
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 0.17% 0.062
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
Es wurden noch keine Informationen zu CWE veröffentlicht.
https://git.kernel.org/stable/c/fb5400bff669c8bad3d4ec09287d9b461e89e5f1
https://git.kernel.org/stable/c/8fdc521d438fbf0d22c13d51d55d5dd82d7202b2
https://git.kernel.org/stable/c/6cc27d82196385fe06853319f74312a7d8019726