ASoC: lpass: Fix for KASAN use_after_free out of bounds
When we run syzkaller we get below Out of Bounds error.
"KASAN: slab-out-of-bounds Read in regcache_flat_read"
Below is the backtrace of the issue:
BUG: KASAN: slab-out-of-bounds in regcache_flat_read+0x10c/0x110
Read of size 4 at addr ffffff8088fbf714 by task syz-executor.4/14144
CPU: 6 PID: 14144 Comm: syz-executor.4 Tainted: G W
Hardware name: Qualcomm Technologies, Inc. sc7280 CRD platform (rev5+) (DT)
Call trace:
dump_backtrace+0x0/0x4ec
show_stack+0x34/0x50
dump_stack_lvl+0xdc/0x11c
print_address_description+0x30/0x2d8
kasan_report+0x178/0x1e4
__asan_report_load4_noabort+0x44/0x50
regcache_flat_read+0x10c/0x110
regcache_read+0xf8/0x5a0
_regmap_read+0x45c/0x86c
_regmap_update_bits+0x128/0x290
regmap_update_bits_base+0xc0/0x15c
snd_soc_component_update_bits+0xa8/0x22c
snd_soc_component_write_field+0x68/0xd4
tx_macro_put_dec_enum+0x1d0/0x268
snd_ctl_elem_write+0x288/0x474
By Error checking and checking valid values issue gets rectifies.
No advisories yet.
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
Tue, 03 Feb 2026 22:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Weaknesses | CWE-416 | |
| CPEs | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.4:rc1:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.4:rc2:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.4:rc3:*:*:*:*:*:* |
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| Metrics |
cvssV3_1
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cvssV3_1
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Wed, 08 Oct 2025 13:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Linux
Linux linux Kernel |
|
| Vendors & Products |
Linux
Linux linux Kernel |
Wed, 08 Oct 2025 00:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| References |
| |
| Metrics |
threat_severity
|
cvssV3_1
|
Tue, 07 Oct 2025 15:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | In the Linux kernel, the following vulnerability has been resolved: ASoC: lpass: Fix for KASAN use_after_free out of bounds When we run syzkaller we get below Out of Bounds error. "KASAN: slab-out-of-bounds Read in regcache_flat_read" Below is the backtrace of the issue: BUG: KASAN: slab-out-of-bounds in regcache_flat_read+0x10c/0x110 Read of size 4 at addr ffffff8088fbf714 by task syz-executor.4/14144 CPU: 6 PID: 14144 Comm: syz-executor.4 Tainted: G W Hardware name: Qualcomm Technologies, Inc. sc7280 CRD platform (rev5+) (DT) Call trace: dump_backtrace+0x0/0x4ec show_stack+0x34/0x50 dump_stack_lvl+0xdc/0x11c print_address_description+0x30/0x2d8 kasan_report+0x178/0x1e4 __asan_report_load4_noabort+0x44/0x50 regcache_flat_read+0x10c/0x110 regcache_read+0xf8/0x5a0 _regmap_read+0x45c/0x86c _regmap_update_bits+0x128/0x290 regmap_update_bits_base+0xc0/0x15c snd_soc_component_update_bits+0xa8/0x22c snd_soc_component_write_field+0x68/0xd4 tx_macro_put_dec_enum+0x1d0/0x268 snd_ctl_elem_write+0x288/0x474 By Error checking and checking valid values issue gets rectifies. | |
| Title | ASoC: lpass: Fix for KASAN use_after_free out of bounds | |
| References |
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Projects
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Status: PUBLISHED
Assigner: Linux
Published:
Updated: 2025-10-30T19:33:06.035Z
Reserved: 2025-10-07T15:16:59.658Z
Link: CVE-2023-53640
No data.
Status : Analyzed
Published: 2025-10-07T16:15:47.270
Modified: 2026-02-03T22:30:01.197
Link: CVE-2023-53640
OpenCVE Enrichment
Updated: 2025-10-08T13:36:59Z