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.
Eric Biggers
authored
commit 270ef410 upstream. If the minix filesystem tries to map a very large logical block number to its on-disk location, block_to_path() can return offsets that are too large, causing out-of-bounds memory accesses when accessing indirect index blocks. This should be prevented by the check against the maximum file size, but this doesn't work because the maximum file size is read directly from the on-disk superblock and isn't validated itself. Fix this by validating the maximum file size at mount time. Fixes: 1da177e4 ("Linux-2.6.12-rc2") Reported-by:<syzbot+c7d9ec7a1a7272dd71b3@syzkaller.appspotmail.com> Reported-by:
<syzbot+3b7b03a0c28948054fb5@syzkaller.appspotmail.com> Reported-by:
<syzbot+6e056ee473568865f3e6@syzkaller.appspotmail.com> Signed-off-by:
Eric Biggers <ebiggers@google.com> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Cc: Alexander Viro <viro@zeniv.linux.org.uk> Cc: Qiujun Huang <anenbupt@gmail.com> Cc: <stable@vger.kernel.org> Link: http://lkml.kernel.org/r/20200628060846.682158-4-ebiggers@kernel.org Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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README |