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2018-03-28staging: wilc1000: split handle_rcvd_gnrl_async_info() to avoid leading tabsAjay Singh1-137/+149
Fix 'Too many leading tabs' issue found by checkpatch.pl script in handle_rcvd_gnrl_async_info(). Signed-off-by: Ajay Singh <ajay.kathat@microchip.com> Reviewed-by: Claudiu Beznea <claudiu.beznea@microchip.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-28staging: wilc1000: free allocated memory in wilc_add_rx_gtk()Ajay Singh1-6/+11
Free memory allocated in wilc_add_rx_gtk() before returing from the function. Signed-off-by: Ajay Singh <ajay.kathat@microchip.com> Reviewed-by: Claudiu Beznea <claudiu.beznea@microchip.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-28staging: wilc1000: fix to free allocated memory in wilc_add_ptk()Ajay Singh1-6/+7
Free allocated memory in wilc_add_ptk() when it fails to enqueue the command. Signed-off-by: Ajay Singh <ajay.kathat@microchip.com> Reviewed-by: Claudiu Beznea <claudiu.beznea@microchip.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-28staging: wilc1000: free allocated memory after processing wilc_send_config_pkt()Ajay Singh1-3/+5
Free allocated memory after completing wilc_send_config_pkt() function. Remove unncessary use of 'stamac' pointer in handle_get_inactive_time(). Signed-off-by: Ajay Singh <ajay.kathat@microchip.com> Reviewed-by: Claudiu Beznea <claudiu.beznea@microchip.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-28staging: wilc1000: free memory allocated in add wep key functionsAjay Singh1-10/+14
Free memory allocated for wep key when command enqueue is failed. Signed-off-by: Ajay Singh <ajay.kathat@microchip.com> Reviewed-by: Claudiu Beznea <claudiu.beznea@microchip.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-28staging: wilc1000: free allocated memory in edit and add station functionsAjay Singh1-2/+6
Added fix to free the allocated memory in case of failure to enqueue the command. Signed-off-by: Ajay Singh <ajay.kathat@microchip.com> Reviewed-by: Claudiu Beznea <claudiu.beznea@microchip.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-28staging: wilc1000: avoid 'NULL' pointer access in wilc_network_info_received()Ajay Singh1-3/+6
Added 'NULL' check before accessing the allocated memory. Free up the memory incase of failure to enqueue the command. Used kmemdup instead of kmalloc & memcpy. Signed-off-by: Ajay Singh <ajay.kathat@microchip.com> Reviewed-by: Claudiu Beznea <claudiu.beznea@microchip.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-28staging: wilc1000: remove unused global variables related to p2pAjay Singh1-59/+0
Cleanup patch to remove the unused global variables defined for p2p. Signed-off-by: Ajay Singh <ajay.kathat@microchip.com> Reviewed-by: Claudiu Beznea <claudiu.beznea@microchip.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-25Linux 4.16-rc7Linus Torvalds1-1/+1
2018-03-25tty: vt: fix up tabstops properlyLinus Torvalds1-4/+4
Tabs on a console with long lines do not wrap properly, so correctly account for the line length when computing the tab placement location. Reported-by: James Holderness <j4_james@hotmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: stable <stable@vger.kernel.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-03-24Revert "mqueue: switch to on-demand creation of internal mount"Eric W. Biederman1-55/+19
This reverts commit 36735a6a2b5e042db1af956ce4bcc13f3ff99e21. Aleksa Sarai <asarai@suse.de> writes: > [REGRESSION v4.16-rc6] [PATCH] mqueue: forbid unprivileged user access to internal mount > > Felix reported weird behaviour on 4.16.0-rc6 with regards to mqueue[1], > which was introduced by 36735a6a2b5e ("mqueue: switch to on-demand > creation of internal mount"). > > Basically, the reproducer boils down to being able to mount mqueue if > you create a new user namespace, even if you don't unshare the IPC > namespace. > > Previously this was not possible, and you would get an -EPERM. The mount > is the *host* mqueue mount, which is being cached and just returned from > mqueue_mount(). To be honest, I'm not sure if this is safe or not (or if > it was intentional -- since I'm not familiar with mqueue). > > To me it looks like there is a missing permission check. I've included a > patch below that I've compile-tested, and should block the above case. > Can someone please tell me if I'm missing something? Is this actually > safe? > > [1]: https://github.com/docker/docker/issues/36674 The issue is a lot deeper than a missing permission check. sb->s_user_ns was is improperly set as well. So in addition to the filesystem being mounted when it should not be mounted, so things are not allow that should be. We are practically to the release of 4.16 and there is no agreement between Al Viro and myself on what the code should looks like to fix things properly. So revert the code to what it was before so that we can take our time and discuss this properly. Fixes: 36735a6a2b5e ("mqueue: switch to on-demand creation of internal mount") Reported-by: Felix Abecassis <fabecassis@nvidia.com> Reported-by: Aleksa Sarai <asarai@suse.de> Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
2018-03-23x86/entry/64: Don't use IST entry for #BP stackAndy Lutomirski3-10/+9
There's nothing IST-worthy about #BP/int3. We don't allow kprobes in the small handful of places in the kernel that run at CPL0 with an invalid stack, and 32-bit kernels have used normal interrupt gates for #BP forever. Furthermore, we don't allow kprobes in places that have usergs while in kernel mode, so "paranoid" is also unnecessary. Signed-off-by: Andy Lutomirski <luto@kernel.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: stable@vger.kernel.org
2018-03-23x86/efi: Free efi_pgd with free_pages()Waiman Long1-1/+1
The efi_pgd is allocated as PGD_ALLOCATION_ORDER pages and therefore must also be freed as PGD_ALLOCATION_ORDER pages with free_pages(). Fixes: d9e9a6418065 ("x86/mm/pti: Allocate a separate user PGD") Signed-off-by: Waiman Long <longman@redhat.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: linux-efi@vger.kernel.org Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org> Cc: stable@vger.kernel.org Link: https://lkml.kernel.org/r/1521746333-19593-1-git-send-email-longman@redhat.com