Linux kernel stable tree (mirror) https://git.radix-linux.su/kernel/linux.git/atom?h=v6.12.80 2024-04-22T19:43:03+00:00 2024-04-22T19:43:03+00:00 Tiwei Bie tiwei.btw@antgroup.com 2024-03-06T10:19:17+00:00 urn:sha1:53471c574974a3df4a5705b1db431d69058cc6d9 This will also fix the warnings like: warning: no previous prototype for ‘fork_handler’ [-Wmissing-prototypes] 140 | void fork_handler(void) | ^~~~~~~~~~~~ Signed-off-by: Tiwei Bie <tiwei.btw@antgroup.com> Signed-off-by: Richard Weinberger <richard@nod.at> 2024-02-21T04:47:32+00:00 Kees Cook keescook@chromium.org 2024-02-02T11:55:00+00:00 urn:sha1:1e06589843632afc78d2f8e9735dac3146b97988 The ARCH=um build has its own idea about strscpy()'s definition. Adjust the callers to remove the redundant sizeof() arguments ahead of treewide changes, since it needs a manual adjustment for the newly named sized_strscpy() export. Cc: Richard Weinberger <richard@nod.at> Cc: linux-um@lists.infradead.org Signed-off-by: Kees Cook <keescook@chromium.org> 2023-09-29T18:37:50+00:00 Justin Stitt justinstitt@google.com 2023-09-11T17:52:44+00:00 urn:sha1:e0bbf92682ad1df36ef43104a036469ac0ab3a4a `strncpy` is deprecated for use on NUL-terminated destination strings [1]. `gate_buf` should always be NUL-terminated and does not require NUL-padding. It is used as a string arg inside an argv array given to `run_helper()`. Due to this, let's use `strscpy` as it guarantees NUL-terminated on the destination buffer preventing potential buffer overreads [2]. This exact invocation was changed from `strcpy` to `strncpy` in commit 7879b1d94badb ("um,ethertap: use strncpy") back in 2015. Let's continue hardening our `str*cpy` apis and use the newer and safer `strscpy`! Link: www.kernel.org/doc/html/latest/process/deprecated.html#strncpy-on-nul-terminated-strings[1] Link: https://manpages.debian.org/testing/linux-manual-4.8/strscpy.9.en.html [2] Link: https://github.com/KSPP/linux/issues/90 Cc: linux-hardening@vger.kernel.org Cc: Kees Cook <keescook@chromium.org> Signed-off-by: Justin Stitt <justinstitt@google.com> Reviewed-by: Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/r/20230911-strncpy-arch-um-os-linux-drivers-ethertap_user-c-v1-1-d9e53f52ab32@google.com Signed-off-by: Kees Cook <keescook@chromium.org> 2023-06-20T20:35:37+00:00 Azeem Shaikh azeemshaikh38@gmail.com 2023-06-14T00:36:04+00:00 urn:sha1:f0a6b5831cfb17381ada015778448b12c1c6179e strlcpy() reads the entire source buffer first. This read may exceed the destination size limit. This is both inefficient and can lead to linear read overflows if a source string is not NUL-terminated [1]. In an effort to remove strlcpy() completely [2], replace strlcpy() here with strscpy(). No return values were used, so direct replacement is safe. [1] https://www.kernel.org/doc/html/latest/process/deprecated.html#strlcpy [2] https://github.com/KSPP/linux/issues/89 Signed-off-by: Azeem Shaikh <azeemshaikh38@gmail.com> Signed-off-by: Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/r/20230614003604.1021205-1-azeemshaikh38@gmail.com 2023-02-05T09:51:22+00:00 Masahiro Yamada masahiroy@kernel.org 2023-01-28T09:24:23+00:00 urn:sha1:67d7c3023a672c2b73d19d6d23684df670fce648 I added $(srctree)/ to some included Makefiles in the following commits: - 3204a7fb98a3 ("kbuild: prefix $(srctree)/ to some included Makefiles") - d82856395505 ("kbuild: do not require sub-make for separate output tree builds") They were a preparation for removing --include-dir flag. I have never thought --include-dir useful. Rather, it _is_ harmful. For example, run the following commands: $ make -s ARCH=x86 mrproper defconfig $ make ARCH=arm O=foo dtbs make[1]: Entering directory '/tmp/linux/foo' HOSTCC scripts/basic/fixdep Error: kernelrelease not valid - run 'make prepare' to update it UPD include/config/kernel.release make[1]: Leaving directory '/tmp/linux/foo' The first command configures the source tree for x86. The next command tries to build ARM device trees in the separate foo/ directory - this must stop because the directory foo/ has not been configured yet. However, due to --include-dir=$(abs_srctree), the top Makefile includes the wrong include/config/auto.conf from the source tree and continues building. Kbuild traverses the directory tree, but of course it does not work correctly. The Error message is also pointless - 'make prepare' does not help at all for fixing the issue. This commit fixes more arch Makefile, and finally removes --include-dir from the top Makefile. There are more breakages under drivers/, but I do not volunteer to fix them all. I just moved --include-dir to drivers/Makefile. With this commit, the second command will stop with a sensible message. $ make -s ARCH=x86 mrproper defconfig $ make ARCH=arm O=foo dtbs make[1]: Entering directory '/tmp/linux/foo' SYNC include/config/auto.conf.cmd *** *** The source tree is not clean, please run 'make ARCH=arm mrproper' *** in /tmp/linux *** make[2]: *** [../Makefile:646: outputmakefile] Error 1 /tmp/linux/Makefile:770: include/config/auto.conf.cmd: No such file or directory make[1]: *** [/tmp/linux/Makefile:793: include/config/auto.conf.cmd] Error 2 make[1]: Leaving directory '/tmp/linux/foo' make: *** [Makefile:226: __sub-make] Error 2 Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> 2019-09-15T19:37:17+00:00 Alex Dewar alex.dewar@gmx.co.uk 2019-08-25T09:49:18+00:00 urn:sha1:97870c34b453251cda9c2341f8534b78003a74dc Convert files to use SPDX header. All files are licensed under the GPLv2. Signed-off-by: Alex Dewar <alex.dewar@gmx.co.uk> Signed-off-by: Richard Weinberger <richard@nod.at> 2017-09-13T20:36:50+00:00 Dan Carpenter dan.carpenter@oracle.com 2017-08-25T10:19:58+00:00 urn:sha1:6d20e6b235aad0be463b23588093b079362bb2e4 The intention is to return negative error codes. "pid" is already negative but we accidentally negate it again back to positive. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Richard Weinberger <richard@nod.at> 2015-06-28T20:55:08+00:00 Linus Torvalds torvalds@linux-foundation.org 2015-06-28T20:55:08+00:00 urn:sha1:21dc2e6c6d552702736ad3603fe9b074654d3932 Pull UML updates from Richard Weinberger: - remove hppfs ("HonePot ProcFS") - initial support for musl libc - uaccess cleanup - random cleanups and bug fixes all over the place * 'for-linus-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml: (21 commits) um: Don't pollute kernel namespace with uapi um: Include sys/types.h for makedev(), major(), minor() um: Do not use stdin and stdout identifiers for struct members um: Do not use __ptr_t type for stack_t's .ss pointer um: Fix mconsole dependency um: Handle tracehook_report_syscall_entry() result um: Remove copy&paste code from init.h um: Stop abusing __KERNEL__ um: Catch unprotected user memory access um: Fix warning in setup_signal_stack_si() um: Rework uaccess code um: Add uaccess.h to ldt.c um: Add uaccess.h to syscalls_64.c um: Add asm/elf.h to vma.c um: Cleanup mem_32/64.c headers um: Remove hppfs um: Move syscall() declaration into os.h um: kernel: ksyms: Export symbol syscall() for fixing modpost issue um/os-Linux: Use char[] for syscall_stub declarations um: Use char[] for linker script address declarations ... 2015-06-25T20:42:19+00:00 Hans-Werner Hilse hwhilse@gmail.com 2015-06-11T09:29:19+00:00 urn:sha1:f9bb3b5947c507d402eecbffabb8fb0864263ad1 stdin, stdout and stderr are macros according to C89/C99. Thus do not use them as struct member identifiers to avoid bad results from macro expansion. Signed-off-by: Hans-Werner Hilse <hwhilse@gmail.com> Signed-off-by: Richard Weinberger <richard@nod.at> 2015-05-24T19:24:35+00:00 Alan gnomes@lxorguk.ukuu.org.uk 2015-04-08T12:59:21+00:00 urn:sha1:7879b1d94badb5c34fa777244091c2304191dddf [um maintainers appear to be vanished] I can't prove the case pointed out in https://bugzilla.kernel.org/show_bug.cgi?id=82341 is correct so let us play safe. Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>