CVE-2023-53144 - Linux Kernel erofs LZMA HIGHMEM NULL Pointer Dereference Vulnerability

CVE-2023-53144 - Linux Kernel erofs LZMA HIGHMEM NULL Pointer Dereference Vulnerability

https://cvefeed.io/rssfeed/latest.atom / Fri, 05/02/2025 - 20:38
CVE ID : CVE-2023-53144
Published : May 2, 2025, 4:15 p.m. | 1 hour, 54 minutes ago
Description : In the Linux kernel, the following vulnerability has been resolved: erofs: fix wrong kunmap when using LZMA on HIGHMEM platforms As the call trace shown, the root cause is kunmap incorrect pages: BUG: kernel NULL pointer dereference, address: 00000000 CPU: 1 PID: 40 Comm: kworker/u5:0 Not tainted 6.2.0-rc5 #4 Workqueue: erofs_worker z_erofs_decompressqueue_work EIP: z_erofs_lzma_decompress+0x34b/0x8ac z_erofs_decompress+0x12/0x14 z_erofs_decompress_queue+0x7e7/0xb1c z_erofs_decompressqueue_work+0x32/0x60 process_one_work+0x24b/0x4d8 ? process_one_work+0x1a4/0x4d8 worker_thread+0x14c/0x3fc kthread+0xe6/0x10c ? rescuer_thread+0x358/0x358 ? kthread_complete_and_exit+0x18/0x18 ret_from_fork+0x1c/0x28 ---[ end trace 0000000000000000 ]--- The bug is trivial and should be fixed now. It has no impact on !HIGHMEM platforms.
Severity: 0.0 | NA
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