{"id":"CVE-2024-56652","summary":"drm/xe/reg_sr: Remove register pool","details":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/xe/reg_sr: Remove register pool\n\nThat pool implementation doesn't really work: if the krealloc happens to\nmove the memory and return another address, the entries in the xarray\nbecome invalid, leading to use-after-free later:\n\n\tBUG: KASAN: slab-use-after-free in xe_reg_sr_apply_mmio+0x570/0x760 [xe]\n\tRead of size 4 at addr ffff8881244b2590 by task modprobe/2753\n\n\tAllocated by task 2753:\n\t kasan_save_stack+0x39/0x70\n\t kasan_save_track+0x14/0x40\n\t kasan_save_alloc_info+0x37/0x60\n\t __kasan_kmalloc+0xc3/0xd0\n\t __kmalloc_node_track_caller_noprof+0x200/0x6d0\n\t krealloc_noprof+0x229/0x380\n\nSimplify the code to fix the bug. A better pooling strategy may be added\nback later if needed.\n\n(cherry picked from commit e5283bd4dfecbd3335f43b62a68e24dae23f59e4)","modified":"2026-05-28T03:55:21.845169286Z","published":"2024-12-27T15:06:16.454Z","related":["USN-7379-2","USN-7380-1"],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/56xxx/CVE-2024-56652.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/b0193a31a0ca5a0f9e60bb4a86537d46b98111b8"},{"type":"WEB","url":"https://git.kernel.org/stable/c/d7b028656c29b22fcde1c6ee1df5b28fbba987b5"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/56xxx/CVE-2024-56652.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-56652"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"dd08ebf6c3525a7ea2186e636df064ea47281987"},{"fixed":"b0193a31a0ca5a0f9e60bb4a86537d46b98111b8"},{"fixed":"d7b028656c29b22fcde1c6ee1df5b28fbba987b5"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-56652.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.8.0"},{"fixed":"6.12.6"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-56652.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}]}