cbcvebase.
CVE-2025-40317
published 2025-12-08

CVE-2025-40317: In the Linux kernel, the following vulnerability has been resolved: regmap: slimbus: fix bus_context pointer in regmap init calls Commit 4e65bda8273c ("ASoC…

PriorityP338high7.8CVSS 3.1
AVLACLPRLUINSUCHIHAH
EPSS
0.13%
2.8th percentile
In the Linux kernel, the following vulnerability has been resolved: regmap: slimbus: fix bus_context pointer in regmap init calls Commit 4e65bda8273c ("ASoC: wcd934x: fix error handling in wcd934x_codec_parse_data()") revealed the problem in the slimbus regmap. That commit breaks audio playback, for instance, on sdm845 Thundercomm Dragonboard 845c board: Unable to handle kernel paging request at virtual address ffff8000847cbad4 ... CPU: 5 UID: 0 PID: 776 Comm: aplay Not tainted 6.18.0-rc1-00028-g7ea30958b305 #11 PREEMPT Hardware name: Thundercomm Dragonboard 845c (DT) ... Call trace: slim_xfer_msg+0x24/0x1ac [slimbus] (P) slim_read+0x48/0x74 [slimbus] regmap_slimbus_read+0x18/0x24 [regmap_slimbus] _regmap_raw_read+0xe8/0x174 _regmap_bus_read+0x44/0x80 _regmap_read+0x60/0xd8 _regmap_update_bits+0xf4/0x140 _regmap_select_page+0xa8/0x124 _regmap_raw_write_impl+0x3b8/0x65c _regmap_bus_raw_write+0x60/0x80 _regmap_write+0x58/0xc0 regmap_write+0x4c/0x80 wcd934x_hw_params+0x494/0x8b8 [snd_soc_wcd934x] snd_soc_dai_hw_params+0x3c/0x7c [snd_soc_core] __soc_pcm_hw_params+0x22c/0x634 [snd_soc_core] dpcm_be_dai_hw_params+0x1d4/0x38c [snd_soc_core] dpcm_fe_dai_hw_params+0x9c/0x17c [snd_soc_core] snd_pcm_hw_params+0x124/0x464 [snd_pcm] snd_pcm_common_ioctl+0x110c/0x1820 [snd_pcm] snd_pcm_ioctl+0x34/0x4c [snd_pcm] __arm64_sys_ioctl+0xac/0x104 invoke_syscall+0x48/0x104 el0_svc_common.constprop.0+0x40/0xe0 do_el0_svc+0x1c/0x28 el0_svc+0x34/0xec el0t_64_sync_handler+0xa0/0xf0 el0t_64_sync+0x198/0x19c The __devm_regmap_init_slimbus() started to be used instead of __regmap_init_slimbus() after the commit mentioned above and turns out the incorrect bus_context pointer (3rd argument) was used in __devm_regmap_init_slimbus(). It should be just "slimbus" (which is equal to &slimbus->dev). Correct it. The wcd934x codec seems to be the only or the first user of devm_regmap_init_slimbus() but we should fix it till the point where __devm_regmap_init_slimbus() was introduced therefore two "Fi

Affected

30 ranges· showing 25
VendorProductVersion rangeFixed in
debianlinux< linux 6.1.159-1 (bookworm)linux 6.1.159-1 (bookworm)
debianlinux-6.1< linux 6.1.159-1 (bookworm)linux 6.1.159-1 (bookworm)
linuxlinux
linuxlinux>= 7d6f7fb053ad543da74119df3c4cd7bb46220471 < c0f05129e5734ff3fd14b2c242709314d9ca5433c0f05129e5734ff3fd14b2c242709314d9ca5433
linuxlinux>= 7d6f7fb053ad543da74119df3c4cd7bb46220471 < 02d3041caaa3fe4dd69e5a8afd1ac6b918ddc6a102d3041caaa3fe4dd69e5a8afd1ac6b918ddc6a1
linuxlinux>= 7d6f7fb053ad543da74119df3c4cd7bb46220471 < d979639f099c6e51f06ce4dd8d8e56364d6c17bad979639f099c6e51f06ce4dd8d8e56364d6c17ba
linuxlinux>= 7d6f7fb053ad543da74119df3c4cd7bb46220471 < 8143e4075d131c528540417a51966f6697be14eb8143e4075d131c528540417a51966f6697be14eb
linuxlinux>= 7d6f7fb053ad543da74119df3c4cd7bb46220471 < 2664bfd8969d1c43dcbe3ea313f130dfa6b74f4c2664bfd8969d1c43dcbe3ea313f130dfa6b74f4c
linuxlinux>= 7d6f7fb053ad543da74119df3c4cd7bb46220471 < a16e92f8d7dc7371e68f17a9926cb92d2244be7ba16e92f8d7dc7371e68f17a9926cb92d2244be7b
linuxlinux>= 7d6f7fb053ad543da74119df3c4cd7bb46220471 < b65f3303349eaee333e47d2a99045aa12fa0c3a7b65f3303349eaee333e47d2a99045aa12fa0c3a7
linuxlinux>= 7d6f7fb053ad543da74119df3c4cd7bb46220471 < 434f7349a1f00618a620b316f091bd13a12bc8d2434f7349a1f00618a620b316f091bd13a12bc8d2
linuxlinux_kernel>= 0 < 5.10.247-15.10.247-1
linuxlinux_kernel>= 0 < 6.1.159-16.1.159-1
linuxlinux_kernel>= 0 < 6.12.63-16.12.63-1
linuxlinux_kernel>= 0 < 6.17.8-16.17.8-1
linuxlinux_kernel>= 0 < 5.15.0-173.1835.15.0-173.183
linuxlinux_kernel>= 0 < 6.8.0-106.1066.8.0-106.106
linuxlinux_kernel>= 0 < 6.17.0-14.146.17.0-14.14
linuxlinux_kernel>= 4.16.0 < 5.4.3025.4.302
linuxlinux_kernel>= 5.11.0 < 5.15.1975.15.197
linuxlinux_kernel>= 5.16.0 < 6.1.1596.1.159
linuxlinux_kernel>= 5.5.0 < 5.10.2475.10.247
linuxlinux_kernel>= 6.13.0 < 6.17.86.17.8
linuxlinux_kernel>= 6.2.0 < 6.6.1176.6.117
linuxlinux_kernel>= 6.7.0 < 6.12.586.12.58

CVSS provenance

nvdv3.17.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
osv7.8HIGH
vendor_ubuntu7.8HIGH
vendor_msrc5.5MEDIUM
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