{"id":"CVE-2023-53640","summary":"ASoC: lpass: Fix for KASAN use_after_free out of bounds","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nASoC: lpass: Fix for KASAN use_after_free out of bounds\n\nWhen we run syzkaller we get below Out of Bounds error.\n\n\"KASAN: slab-out-of-bounds Read in regcache_flat_read\"\n\nBelow is the backtrace of the issue:\n\nBUG: KASAN: slab-out-of-bounds in regcache_flat_read+0x10c/0x110\nRead of size 4 at addr ffffff8088fbf714 by task syz-executor.4/14144\nCPU: 6 PID: 14144 Comm: syz-executor.4 Tainted: G        W\nHardware name: Qualcomm Technologies, Inc. sc7280 CRD platform (rev5+) (DT)\nCall trace:\ndump_backtrace+0x0/0x4ec\nshow_stack+0x34/0x50\ndump_stack_lvl+0xdc/0x11c\nprint_address_description+0x30/0x2d8\nkasan_report+0x178/0x1e4\n__asan_report_load4_noabort+0x44/0x50\nregcache_flat_read+0x10c/0x110\nregcache_read+0xf8/0x5a0\n_regmap_read+0x45c/0x86c\n_regmap_update_bits+0x128/0x290\nregmap_update_bits_base+0xc0/0x15c\nsnd_soc_component_update_bits+0xa8/0x22c\nsnd_soc_component_write_field+0x68/0xd4\ntx_macro_put_dec_enum+0x1d0/0x268\nsnd_ctl_elem_write+0x288/0x474\n\nBy Error checking and checking valid values issue gets rectifies.","modified":"2026-03-20T12:33:16.213206Z","published":"2025-10-07T15:19:40.348Z","related":["SUSE-SU-2025:4111-1","SUSE-SU-2025:4139-1","SUSE-SU-2025:4149-1","SUSE-SU-2025:4320-1"],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53640.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/75e5fab7db0cecb6e16b22c34608f0b40a4c7cd1"},{"type":"WEB","url":"https://git.kernel.org/stable/c/8d81d3b0ed3610d24191d24f8e9e20f6775f0cc5"},{"type":"WEB","url":"https://git.kernel.org/stable/c/8f1512d78b5de928f4616a871e77b58fd546e651"},{"type":"WEB","url":"https://git.kernel.org/stable/c/f5e61e3fe799ba2fda4320af23d26d28c3302045"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53640.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-53640"},{"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":"c39667ddcfc516fee084e449179d54430a558298"},{"fixed":"8f1512d78b5de928f4616a871e77b58fd546e651"},{"fixed":"8d81d3b0ed3610d24191d24f8e9e20f6775f0cc5"},{"fixed":"f5e61e3fe799ba2fda4320af23d26d28c3302045"},{"fixed":"75e5fab7db0cecb6e16b22c34608f0b40a4c7cd1"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-53640.json"}}],"schema_version":"1.7.5"}