{"cve":"CVE-2023-53135","nvd":{"published":"2025-05-02T16:15:32.447","modified":"2026-06-17T06:44:21.740","status":"Analyzed","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nriscv: Use READ_ONCE_NOCHECK in imprecise unwinding stack mode\n\nWhen CONFIG_FRAME_POINTER is unset, the stack unwinding function\nwalk_stackframe randomly reads the stack and then, when KASAN is enabled,\nit can lead to the following backtrace:\n\n[    0.000000] ==================================================================\n[    0.000000] BUG: KASAN: stack-out-of-bounds in walk_stackframe+0xa6/0x11a\n[    0.000000] Read of size 8 at addr ffffffff81807c40 by task swapper/0\n[    0.000000]\n[    0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 6.2.0-12919-g24203e6db61f #43\n[    0.000000] Hardware name: riscv-virtio,qemu (DT)\n[    0.000000] Call Trace:\n[    0.000000] [<ffffffff80007ba8>] walk_stackframe+0x0/0x11a\n[    0.000000] [<ffffffff80099ecc>] init_param_lock+0x26/0x2a\n[    0.000000] [<ffffffff80007c4a>] walk_stackframe+0xa2/0x11a\n[    0.000000] [<ffffffff80c49c80>] dump_stack_lvl+0x22/0x36\n[    0.000000] [<ffffffff80c3783e>] print_report+0x198/0x4a8\n[    0.000000] [<ffffffff80099ecc>] init_param_lock+0x26/0x2a\n[    0.000000] [<ffffffff80007c4a>] walk_stackframe+0xa2/0x11a\n[    0.000000] [<ffffffff8015f68a>] kasan_report+0x9a/0xc8\n[    0.000000] [<ffffffff80007c4a>] walk_stackframe+0xa2/0x11a\n[    0.000000] [<ffffffff80007c4a>] walk_stackframe+0xa2/0x11a\n[    0.000000] [<ffffffff8006e99c>] desc_make_final+0x80/0x84\n[    0.000000] [<ffffffff8009a04e>] stack_trace_save+0x88/0xa6\n[    0.000000] [<ffffffff80099fc2>] filter_irq_stacks+0x72/0x76\n[    0.000000] [<ffffffff8006b95e>] devkmsg_read+0x32a/0x32e\n[    0.000000] [<ffffffff8015ec16>] kasan_save_stack+0x28/0x52\n[    0.000000] [<ffffffff8006e998>] desc_make_final+0x7c/0x84\n[    0.000000] [<ffffffff8009a04a>] stack_trace_save+0x84/0xa6\n[    0.000000] [<ffffffff8015ec52>] kasan_set_track+0x12/0x20\n[    0.000000] [<ffffffff8015f22e>] __kasan_slab_alloc+0x58/0x5e\n[    0.000000] [<ffffffff8015e7ea>] __kmem_cache_create+0x21e/0x39a\n[    0.000000] [<ffffffff80e133ac>] create_boot_cache+0x70/0x9c\n[    0.000000] [<ffffffff80e17ab2>] kmem_cache_init+0x6c/0x11e\n[    0.000000] [<ffffffff80e00fd6>] mm_init+0xd8/0xfe\n[    0.000000] [<ffffffff80e011d8>] start_kernel+0x190/0x3ca\n[    0.000000]\n[    0.000000] The buggy address belongs to stack of task swapper/0\n[    0.000000]  and is located at offset 0 in frame:\n[    0.000000]  stack_trace_save+0x0/0xa6\n[    0.000000]\n[    0.000000] This frame has 1 object:\n[    0.000000]  [32, 56) 'c'\n[    0.000000]\n[    0.000000] The buggy address belongs to the physical page:\n[    0.000000] page:(____ptrval____) refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x81a07\n[    0.000000] flags: 0x1000(reserved|zone=0)\n[    0.000000] raw: 0000000000001000 ff600003f1e3d150 ff600003f1e3d150 0000000000000000\n[    0.000000] raw: 0000000000000000 0000000000000000 00000001ffffffff\n[    0.000000] page dumped because: kasan: bad access detected\n[    0.000000]\n[    0.000000] Memory state around the buggy address:\n[    0.000000]  ffffffff81807b00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00\n[    0.000000]  ffffffff81807b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00\n[    0.000000] >ffffffff81807c00: 00 00 00 00 00 00 00 00 f1 f1 f1 f1 00 00 00 f3\n[    0.000000]                                            ^\n[    0.000000]  ffffffff81807c80: f3 f3 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00\n[    0.000000]  ffffffff81807d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00\n[    0.000000] ==================================================================\n\nFix that by using READ_ONCE_NOCHECK when reading the stack in imprecise\nmode.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H","score":7.1},"cwes":["CWE-125"],"references":["https://git.kernel.org/stable/c/17fa90ffba20743c946920fbb0afe160d0ead8c9","https://git.kernel.org/stable/c/324912d6c0c4006711054d389faa2239c1655e1e","https://git.kernel.org/stable/c/3a9418d2c93c1c86ce4d0595112d91c7a8e70c2c","https://git.kernel.org/stable/c/3de277af481ab931fab9e295ad8762692920732a","https://git.kernel.org/stable/c/76950340cf03b149412fe0d5f0810e52ac1df8cb"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T22:01:22.920403922+00:00"},"epss":{"cve":"CVE-2023-53135","score":0.00193,"percentile":0.09024,"date":"2026-11-01"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}