drm/bridge: samsung-dsim: Fix memory leak in error path

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Summary

CVECVE-2026-43397
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-05-08 15:16:51 UTC
Updated2026-05-12 14:10:27 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: drm/bridge: samsung-dsim: Fix memory leak in error path In samsung_dsim_host_attach(), drm_bridge_add() is called to add the bridge. However, if samsung_dsim_register_te_irq() or pdata->host_ops->attach() fails afterwards, the function returns without removing the bridge, causing a memory leak. Fix this by adding proper error handling with goto labels to ensure drm_bridge_remove() is called in all error paths. Also ensure that samsung_dsim_unregister_te_irq() is called if the attach operation fails after the TE IRQ has been registered. samsung_dsim_unregister_te_irq() function is moved without changes to be before samsung_dsim_host_attach() to avoid forward declaration.

Risk And Classification

EPSS: 0.000180000 probability, percentile 0.049210000 (date 2026-05-11)

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected e7447128ca4a250374d6721ee98e3e3cf99551a6 98310fe3a2a79671b739a5344c1a11d74c503e25 git Not specified
CNA Linux Linux affected e7447128ca4a250374d6721ee98e3e3cf99551a6 0b07f7d2c5a4078c2f1c11bb36685084fe4e5c95 git Not specified
CNA Linux Linux affected e7447128ca4a250374d6721ee98e3e3cf99551a6 e6d779654cda63d632bd8dfcdcabd125057e30a5 git Not specified
CNA Linux Linux affected e7447128ca4a250374d6721ee98e3e3cf99551a6 a40b92fb4b26d4cb1b5e439e55a56db7e79a82d1 git Not specified
CNA Linux Linux affected e7447128ca4a250374d6721ee98e3e3cf99551a6 803ec1faf7c1823e6e3b1f2aaa81be18528c9436 git Not specified
CNA Linux Linux affected 6.4 Not specified
CNA Linux Linux unaffected 6.4 semver Not specified
CNA Linux Linux unaffected 6.6.130 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.78 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.19 6.18.* semver Not specified
CNA Linux Linux unaffected 6.19.9 6.19.* semver Not specified
CNA Linux Linux unaffected 7.0 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/a40b92fb4b26d4cb1b5e439e55a56db7e79a82d1 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/98310fe3a2a79671b739a5344c1a11d74c503e25 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/e6d779654cda63d632bd8dfcdcabd125057e30a5 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/803ec1faf7c1823e6e3b1f2aaa81be18528c9436 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/0b07f7d2c5a4078c2f1c11bb36685084fe4e5c95 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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