cbcvebase.
CVE-2023-52491
published 2024-03-11

CVE-2023-52491: In the Linux kernel, the following vulnerability has been resolved: media: mtk-jpeg: Fix use after free bug due to error path handling in…

PriorityP337high7.8CVSS 3.1
AVLACLPRLUINSUCHIHAH
EPSS
0.28%
19.8th percentile
In the Linux kernel, the following vulnerability has been resolved: media: mtk-jpeg: Fix use after free bug due to error path handling in mtk_jpeg_dec_device_run In mtk_jpeg_probe, &jpeg->job_timeout_work is bound with mtk_jpeg_job_timeout_work. In mtk_jpeg_dec_device_run, if error happens in mtk_jpeg_set_dec_dst, it will finally start the worker while mark the job as finished by invoking v4l2_m2m_job_finish. There are two methods to trigger the bug. If we remove the module, it which will call mtk_jpeg_remove to make cleanup. The possible sequence is as follows, which will cause a use-after-free bug. CPU0 CPU1 mtk_jpeg_dec_... | start worker | |mtk_jpeg_job_timeout_work mtk_jpeg_remove | v4l2_m2m_release | kfree(m2m_dev); | | | v4l2_m2m_get_curr_priv | m2m_dev->curr_ctx //use If we close the file descriptor, which will call mtk_jpeg_release, it will have a similar sequence. Fix this bug by starting timeout worker only if started jpegdec worker successfully. Then v4l2_m2m_job_finish will only be called in either mtk_jpeg_job_timeout_work or mtk_jpeg_dec_device_run.

Affected

18 ranges
VendorProductVersion rangeFixed in
debianlinux< linux 6.1.76-1 (bookworm)linux 6.1.76-1 (bookworm)
linuxlinux
linuxlinux>= b2f0d2724ba477d326e9d654d4db1c93e98f8b93 < 43872f44eee6c6781fea1348b38885d8e78face943872f44eee6c6781fea1348b38885d8e78face9
linuxlinux>= b2f0d2724ba477d326e9d654d4db1c93e98f8b93 < 1b1036c60a37a30caf6759a90fe5ecd06ec355901b1036c60a37a30caf6759a90fe5ecd06ec35590
linuxlinux>= b2f0d2724ba477d326e9d654d4db1c93e98f8b93 < 9fec4db7fff54d9b0306a332bab31eac47eeb5f69fec4db7fff54d9b0306a332bab31eac47eeb5f6
linuxlinux>= b2f0d2724ba477d326e9d654d4db1c93e98f8b93 < 8254d54d00eb6cdb8367399c7f912eb8d354ecd78254d54d00eb6cdb8367399c7f912eb8d354ecd7
linuxlinux>= b2f0d2724ba477d326e9d654d4db1c93e98f8b93 < 6e2f37022f0fc0893da4d85a0500c9d547fffd4c6e2f37022f0fc0893da4d85a0500c9d547fffd4c
linuxlinux>= b2f0d2724ba477d326e9d654d4db1c93e98f8b93 < 206c857dd17d4d026de85866f1b5f0969f2a109e206c857dd17d4d026de85866f1b5f0969f2a109e
linuxlinux_kernel>= 0 < 5.10.216-15.10.216-1
linuxlinux_kernel>= 0 < 6.1.76-16.1.76-1
linuxlinux_kernel>= 0 < 6.6.15-16.6.15-1
linuxlinux_kernel>= 0 < 6.6.15-16.6.15-1
linuxlinux_kernel>= 0 < 5.15.0-106.1165.15.0-106.116
linuxlinux_kernel>= 4.12 < 5.10.2105.10.210
linuxlinux_kernel>= 5.11 < 5.15.1495.15.149
linuxlinux_kernel>= 5.16 < 6.1.766.1.76
linuxlinux_kernel>= 6.2 < 6.6.156.6.15
linuxlinux_kernel>= 6.7 < 6.7.36.7.3

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_debian7.8HIGH
vendor_redhat7.8HIGH
vendor_ubuntu6.5MEDIUM
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