https://github.com/torvalds/linux
Remove BUG_ON() if the shift immediate is >=32 to avoid kernel crashes due to malicious user input. If the shift immediate is >= 32, we simply load the destination register with 0 since only 32-bit instructions are used by JIT so this will do the correct thing even on MIPS64. Signed-off-by: Markos Chandras <markos.chandras@imgtec.com> Cc: David S. Miller <davem@davemloft.net> Cc: Daniel Borkmann <dborkman@redhat.com> Cc: Alexei Starovoitov <ast@plumgrid.com> Cc: netdev@vger.kernel.org Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/7179/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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MIPS: BPF: Prevent kernel fall over for >=32bit shifts
File | Mode | Size |
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fs | ||
include | ||
init | ||
ipc | ||
kernel | ||
lib | ||
mm | ||
net | ||
samples | ||
scripts | ||
security | ||
sound | ||
tools | ||
usr | ||
virt | ||
.gitignore | -rw-r--r-- | 1.1 KB |
.mailmap | -rw-r--r-- | 4.4 KB |
COPYING | -rw-r--r-- | 18.3 KB |
CREDITS | -rw-r--r-- | 93.6 KB |
Kbuild | -rw-r--r-- | 2.5 KB |
Kconfig | -rw-r--r-- | 252 bytes |
MAINTAINERS | -rw-r--r-- | 275.0 KB |
Makefile | -rw-r--r-- | 50.8 KB |
README | -rw-r--r-- | 18.3 KB |
REPORTING-BUGS | -rw-r--r-- | 7.3 KB |
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