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THREAT OPS › Threat News › [NVD] CVE-2026-53403 (MEDIUM 5.5) — In the Linux kernel, the following vulnerability has been resolved: fbdev: Fix fb_new_modelist to prevent null-ptr-deref in fb_videomode_to_var info->var, a framebuffer's current mode, is expected to have a matching entry in info->modelist. var_to_display() relies on this and t

[NVD] CVE-2026-53403 (MEDIUM 5.5) — In the Linux kernel, the following vulnerability has been resolved: fbdev: Fix fb_new_modelist to prevent null-ptr-deref in fb_videomode_to_var info->var, a framebuffer's current mode, is expected to have a matching entry in info->modelist. var_to_display() relies on this and t

mednvdPublished 2026-07-19

CVE-2026-53403 CVSS: 5.5 MEDIUM Published: 2026-07-19T12:16:51.510

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

fbdev: Fix fb_new_modelist to prevent null-ptr-deref in fb_videomode_to_var

info->var, a framebuffer's current mode, is expected to have a matching entry in info->modelist. var_to_display() relies on this and treats a failed fb_match_mode() as "This should not h

Indicators of compromise

CVE-2026-53403cve

Original source: https://nvd.nist.gov/vuln/detail/CVE-2026-53403