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https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
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Wentao Liang
3ed109a721
commitc3027973f6upstream. In nvkm_acr_oneinit(), nvkm_kmap(acr->wpr) is invoked unconditionally at line 309 to obtain a mapping reference. Additionally, when both acr->wpr_fw and acr->wpr_comp are present, a second nvkm_kmap() is called inside the conditional block. Both mappings are expected to be released by nvkm_done(acr->wpr) at line 320 before the function returns successfully. However, when a mismatch is detected during the loop within the conditional block, the function returns -EINVAL at line 318 without calling nvkm_done(). This results in a leak of the kmap reference(s) acquired earlier. Fix the issue by invoking nvkm_done(acr->wpr) prior to the early return to ensure proper release of the mapping references. Fixes:22dcda45a3("drm/nouveau/acr: implement new subdev to replace "secure boot"") Cc: stable@vger.kernel.org Signed-off-by: Wentao Liang <vulab@iscas.ac.cn> Link: https://patch.msgid.link/20260606155606.77593-1-vulab@iscas.ac.cn Signed-off-by: Danilo Krummrich <dakr@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.