CVE-2026-52966: Linux

Описание

Оригинално описание

In the Linux kernel, the following vulnerability has been resolved: drm: Replace old pointer to new idr Commit 5e28b7b94408 introduced a logical error by failing to replace the newly generated IDR pointer to old id's pointer at the correct location within the "change handle" logic; this resulted in the issue reported by syzbot [1]. Specifically, the new IDR object pointer is intended to replace the original id's pointer during the normal execution flow. Additionally, an unnecessary conditional check for the ret exit path has been removed. [1] !RB_EMPTY_ROOT(&prime_fpriv->dmabufs) WARNING: drivers/gpu/drm/drm_prime.c:224 at drm_prime_destroy_file_private+0x48/0x60 drivers/gpu/drm/drm_prime.c:224, CPU#0: syz.0.17/5833 Call Trace: drm_file_free.part.0+0x7e6/0xcc0 drivers/gpu/drm/drm_file.c:269 drm_file_free drivers/gpu/drm/drm_file.c:237 [inline] drm_close_helper.isra.0+0x186/0x200 drivers/gpu/drm/drm_file.c:290 drm_release+0x1ab/0x360 drivers/gpu/drm/drm_file.c:438

Засегнати продукти

• Linux Linux: 672464dd53231509c9c771110798c56d4660e19e преди 318b995cffcfcaa69a234d28123a3f4ae186a9df; 61bd96d3e5472c253f9c1ab77608f0c8aaa9d025 преди 38f12d0e10d83b66fa1466400d876a3a8da31542; 5e28b7b94408897e41c63477aabc9e1db439bc8c преди dc366607c41c45fd0ae6f3db090f31dd611b644a
• Linux Linux: 6.18.32 преди 6.18.33; 7.0.9 преди 7.0.10

История

Други уязвимости в Linux Linux

• 8.1CVE-2026-99270
• 7.8CVE-2026-99269
• CVE-2026-99268
• CVE-2026-99266
• CVE-2026-99267

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-52966
• https://nvd.nist.gov/vuln/detail/CVE-2026-52966
• https://git.kernel.org/stable/c/318b995cffcfcaa69a234d28123a3f4ae186a9df
• https://git.kernel.org/stable/c/38f12d0e10d83b66fa1466400d876a3a8da31542
• https://git.kernel.org/stable/c/dc366607c41c45fd0ae6f3db090f31dd611b644a