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{"bugzilla": {"description": "kernel: drm/xe/reg_sr: Remove register pool", "id": "2334536", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2334536"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.8", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-416", "details": ["In the Linux kernel, the following vulnerability has been resolved:\ndrm/xe/reg_sr: Remove register pool\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:\nBUG: KASAN: slab-use-after-free in xe_reg_sr_apply_mmio+0x570/0x760 [xe]\nRead of size 4 at addr ffff8881244b2590 by task modprobe/2753\nAllocated by task 2753:\nkasan_save_stack+0x39/0x70\nkasan_save_track+0x14/0x40\nkasan_save_alloc_info+0x37/0x60\n__kasan_kmalloc+0xc3/0xd0\n__kmalloc_node_track_caller_noprof+0x200/0x6d0\nkrealloc_noprof+0x229/0x380\nSimplify the code to fix the bug. A better pooling strategy may be added\nback later if needed.\n(cherry picked from commit e5283bd4dfecbd3335f43b62a68e24dae23f59e4)"], "name": "CVE-2024-56652", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-12-27T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-56652\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-56652\nhttps://lore.kernel.org/linux-cve-announce/2024122748-CVE-2024-56652-31db@gregkh/T"], "threat_severity": "Important"}

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