This is a note to let you know that I've just added the patch titled compat_ioctl: remove /dev/random commands to the 5.4-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: compat_ioctl-remove-dev-random-commands.patch and it can be found in the queue-5.4 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From foo@baz Fri Jun 17 09:02:32 AM CEST 2022 From: Arnd Bergmann <arnd@xxxxxxxx> Date: Fri, 7 Sep 2018 11:10:23 +0200 Subject: compat_ioctl: remove /dev/random commands From: Arnd Bergmann <arnd@xxxxxxxx> commit 507e4e2b430b6a27b66f4745564ecaee7967737f upstream. These are all handled by the random driver, so instead of listing each ioctl, we can use the generic compat_ptr_ioctl() helper. Acked-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx> Signed-off-by: Jason A. Donenfeld <Jason@xxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/char/random.c | 1 + fs/compat_ioctl.c | 7 ------- 2 files changed, 1 insertion(+), 7 deletions(-) --- a/drivers/char/random.c +++ b/drivers/char/random.c @@ -2190,6 +2190,7 @@ const struct file_operations random_fops .write = random_write, .poll = random_poll, .unlocked_ioctl = random_ioctl, + .compat_ioctl = compat_ptr_ioctl, .fasync = random_fasync, .llseek = noop_llseek, }; --- a/fs/compat_ioctl.c +++ b/fs/compat_ioctl.c @@ -808,13 +808,6 @@ COMPATIBLE_IOCTL(WDIOC_SETTIMEOUT) COMPATIBLE_IOCTL(WDIOC_GETTIMEOUT) COMPATIBLE_IOCTL(WDIOC_SETPRETIMEOUT) COMPATIBLE_IOCTL(WDIOC_GETPRETIMEOUT) -/* Big R */ -COMPATIBLE_IOCTL(RNDGETENTCNT) -COMPATIBLE_IOCTL(RNDADDTOENTCNT) -COMPATIBLE_IOCTL(RNDGETPOOL) -COMPATIBLE_IOCTL(RNDADDENTROPY) -COMPATIBLE_IOCTL(RNDZAPENTCNT) -COMPATIBLE_IOCTL(RNDCLEARPOOL) /* Bluetooth */ COMPATIBLE_IOCTL(HCIDEVUP) COMPATIBLE_IOCTL(HCIDEVDOWN) Patches currently in stable-queue which might be from arnd@xxxxxxxx are queue-5.4/um-use-fallback-for-random_get_entropy-instead-of-zero.patch queue-5.4/sparc-use-fallback-for-random_get_entropy-instead-of-zero.patch queue-5.4/xtensa-use-fallback-for-random_get_entropy-instead-of-zero.patch queue-5.4/ia64-define-get_cycles-macro-for-arch-override.patch queue-5.4/timekeeping-add-raw-clock-fallback-for-random_get_entropy.patch queue-5.4/arm-use-fallback-for-random_get_entropy-instead-of-zero.patch queue-5.4/compat_ioctl-remove-dev-random-commands.patch queue-5.4/nios2-use-fallback-for-random_get_entropy-instead-of-zero.patch queue-5.4/parisc-define-get_cycles-macro-for-arch-override.patch queue-5.4/x86-tsc-use-fallback-for-random_get_entropy-instead-of-zero.patch queue-5.4/random-don-t-forget-compat_ioctl-on-urandom.patch queue-5.4/m68k-use-fallback-for-random_get_entropy-instead-of-zero.patch queue-5.4/alpha-define-get_cycles-macro-for-arch-override.patch queue-5.4/s390-define-get_cycles-macro-for-arch-override.patch queue-5.4/powerpc-define-get_cycles-macro-for-arch-override.patch queue-5.4/mips-use-fallback-for-random_get_entropy-instead-of-just-c0-random.patch