CVE Explorer

CVE-2026-43497

In the Linux kernel, the following vulnerability has been resolved: fbdev: udlfb: add vm_ops to dlfb_ops_mmap to prevent use-after-free dlfb_ops_mmap() uses remap_pfn_range() to map vmalloc framebuffer pages to userspace but sets no vm_ops on the VMA. This means the kernel cannot track active mmaps. When dlfb_realloc_framebuffer() replaces the backing buffer via FBIOPUT_VSCREENINFO, existing mmap PTEs are not invalidated. On USB disconnect, dlfb_ops_destroy() calls vfree() on the old pages whi

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:b2903fe78ff567f539cc9cadfb89b9a16fb4aa4026e1d7dea44047a1d9314663

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 2 assertions

{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/video/fbdev/udlfb.c","include/video/udlfb.h"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"4.19"},{"lessThan":"4.19","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.258","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.209","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.175","ve…

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:d81539673fcc1ce5bde35c95f0c2b792d8ebb3f7414b71c613dc139d062e86ea · sha256:52fa628db3e26976… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/video/fbdev/udlfb.c","include/video/udlfb.h"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"60f711cfd580f86fea8284146ac133804e728f9a","status":"affected","version":"7433914efd584b22bb49d3e1eee001f5d0525ecd","versionType":"git"},{"lessThan":"5931f5651ee32bd41b3323256b31fcc8e71336ed","status":"affected","version":"7433914efd584b22bb49d3e1eee001f5d0525ecd","versionType":"git"},{"lessThan":"e3d9865dacd7435b8465848428210d0f0c673311","status":"affected","vers…

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:d81539673fcc1ce5bde35c95f0c2b792d8ebb3f7414b71c613dc139d062e86ea · sha256:52fa628db3e26976… · /containers/cna/affected/0

Affected products and versions

2 source assertions

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:d81539673fcc1ce5bde35c95f0c2b792d8ebb3f7414b71c613dc139d062e86ea · sha256:52fa628db3e26976… · /containers/cna/affected/1

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:d81539673fcc1ce5bde35c95f0c2b792d8ebb3f7414b71c613dc139d062e86ea · sha256:52fa628db3e26976… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"baseScore":7.3,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:d81539673fcc1ce5bde35c95f0c2b792d8ebb3f7414b71c613dc139d062e86ea · sha256:52fa628db3e26976… · /containers/cna/metrics/0/cvssV3_1

Source references

8 source assertions

{"url":"https://git.kernel.org/stable/c/18dd358de72d57993422cbb5dfb29ccd74efe192"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:d81539673fcc1ce5bde35c95f0c2b792d8ebb3f7414b71c613dc139d062e86ea · sha256:52fa628db3e26976… · /containers/cna/references/4

{"url":"https://git.kernel.org/stable/c/4f312c30f0368e8d2a76aa650dff73f23490b5e7"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:d81539673fcc1ce5bde35c95f0c2b792d8ebb3f7414b71c613dc139d062e86ea · sha256:52fa628db3e26976… · /containers/cna/references/3

{"url":"https://git.kernel.org/stable/c/5931f5651ee32bd41b3323256b31fcc8e71336ed"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:d81539673fcc1ce5bde35c95f0c2b792d8ebb3f7414b71c613dc139d062e86ea · sha256:52fa628db3e26976… · /containers/cna/references/1

{"url":"https://git.kernel.org/stable/c/60f711cfd580f86fea8284146ac133804e728f9a"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:d81539673fcc1ce5bde35c95f0c2b792d8ebb3f7414b71c613dc139d062e86ea · sha256:52fa628db3e26976… · /containers/cna/references/0

{"url":"https://git.kernel.org/stable/c/8de779dc40d35d39fa07387b6f921eb11df0f511"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:d81539673fcc1ce5bde35c95f0c2b792d8ebb3f7414b71c613dc139d062e86ea · sha256:52fa628db3e26976… · /containers/cna/references/7

{"url":"https://git.kernel.org/stable/c/a2c53a3822ee26e8d758071815b9ed3bf6669fc1"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:d81539673fcc1ce5bde35c95f0c2b792d8ebb3f7414b71c613dc139d062e86ea · sha256:52fa628db3e26976… · /containers/cna/references/6

{"url":"https://git.kernel.org/stable/c/da9b065cedfd3b574f229d5be594e6aa47a27ae6"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:d81539673fcc1ce5bde35c95f0c2b792d8ebb3f7414b71c613dc139d062e86ea · sha256:52fa628db3e26976… · /containers/cna/references/5

{"url":"https://git.kernel.org/stable/c/e3d9865dacd7435b8465848428210d0f0c673311"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:d81539673fcc1ce5bde35c95f0c2b792d8ebb3f7414b71c613dc139d062e86ea · sha256:52fa628db3e26976… · /containers/cna/references/2

Attribution and limitations

CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

← Back to CVE Explorer