mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
synced 2026-05-05 17:03:47 -04:00
d35686444f
The counting of module PLTs has been broken when CONFIG_RANDOMIZE_BASE=n since commit:3e35d303ab("arm64: module: rework module VA range selection") Prior to that commit, when CONFIG_RANDOMIZE_BASE=n, the kernel image and all modules were placed within a 128M region, and no PLTs were necessary for B or BL. Hence count_plts() and partition_branch_plt_relas() skipped handling B and BL when CONFIG_RANDOMIZE_BASE=n. After that commit, modules can be placed anywhere within a 2G window regardless of CONFIG_RANDOMIZE_BASE, and hence PLTs may be necessary for B and BL even when CONFIG_RANDOMIZE_BASE=n. Unfortunately that commit failed to update count_plts() and partition_branch_plt_relas() accordingly. Due to this, module_emit_plt_entry() may fail if an insufficient number of PLT entries have been reserved, resulting in modules failing to load with -ENOEXEC. Fix this by counting PLTs regardless of CONFIG_RANDOMIZE_BASE in count_plts() and partition_branch_plt_relas(). Fixes:3e35d303ab("arm64: module: rework module VA range selection") Signed-off-by: Maria Yu <quic_aiquny@quicinc.com> Cc: <stable@vger.kernel.org> # 6.5.x Acked-by: Ard Biesheuvel <ardb@kernel.org> Fixes:3e35d303ab("arm64: module: rework module VA range selection") Reviewed-by: Mark Rutland <mark.rutland@arm.com> Link: https://lore.kernel.org/r/20231024010954.6768-1-quic_aiquny@quicinc.com Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
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.