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CVE-2025-68237

mtdchar: fix integer overflow in read/write ioctls

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

mtdchar: fix integer overflow in read/write ioctls

The "req.start" and "req.len" variables are u64 values that come from the
user at the start of the function.  We mask away the high 32 bits of
"req.len" so that's capped at U32_MAX but the "req.start" variable can go
up to U64_MAX which means that the addition can still integer overflow.

Use check_add_overflow() to fix this bug.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerLinux
≫
Produkt Linux
Default Statusunaffected
Version 6420ac0af95dbcb2fd8452e2d551ab50e1bbad83
Version < f37efdd97fd1ec3e0d0f1eec279c8279e28f981e
Status affected
Version 6420ac0af95dbcb2fd8452e2d551ab50e1bbad83
Version < 457376c6fbf0c69326a9bf1f72416225f681192b
Status affected
Version 6420ac0af95dbcb2fd8452e2d551ab50e1bbad83
Version < eb9361484814fb12f3b7544b33835ea67d7a6a97
Status affected
Version 6420ac0af95dbcb2fd8452e2d551ab50e1bbad83
Version < 37944f4f8199cd153fef74e95ca268020162f212
Status affected
Version 6420ac0af95dbcb2fd8452e2d551ab50e1bbad83
Version < e4185bed738da755b191aa3f2e16e8b48450e1b8
Status affected
HerstellerLinux
≫
Produkt Linux
Default Statusaffected
Version 5.17
Status affected
Version 0
Version < 5.17
Status unaffected
Version <= 6.1.*
Version 6.1.159
Status unaffected
Version <= 6.6.*
Version 6.6.118
Status unaffected
Version <= 6.12.*
Version 6.12.60
Status unaffected
Version <= 6.17.*
Version 6.17.10
Status unaffected
Version <= *
Version 6.18
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 0.03% 0.092
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
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