Revision 07718be265680dcf496347d475ce1a5442f55ad7 authored by Maxim Mikityanskiy on 10 June 2021, 16:40:30 UTC, committed by David S. Miller on 10 June 2021, 21:26:18 UTC
The TCP option parser in mptcp (mptcp_get_options) could read one byte
out of bounds. When the length is 1, the execution flow gets into the
loop, reads one byte of the opcode, and if the opcode is neither
TCPOPT_EOL nor TCPOPT_NOP, it reads one more byte, which exceeds the
length of 1.
This fix is inspired by commit 9609dad263f8 ("ipv4: tcp_input: fix stack
out of bounds when parsing TCP options.").
Cc: Young Xiao <92siuyang@gmail.com>
Fixes: cec37a6e41aa ("mptcp: Handle MP_CAPABLE options for outgoing connections")
Signed-off-by: Maxim Mikityanskiy <maximmi@nvidia.com>
Reviewed-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
1 parent 5fc177a
| File | Mode | Size |
|---|---|---|
| atomic | ||
| basic | ||
| clang-tools | ||
| coccinelle | ||
| dtc | ||
| dummy-tools | ||
| gcc-plugins | ||
| gdb | ||
| genksyms | ||
| kconfig | ||
| ksymoops | ||
| mod | ||
| package | ||
| selinux | ||
| tracing | ||
| .gitignore | -rw-r--r-- | 160 bytes |
| Kbuild.include | -rw-r--r-- | 9.0 KB |
| Kconfig.include | -rw-r--r-- | 2.6 KB |
| Lindent | -rwxr-xr-x | 502 bytes |
| Makefile | -rw-r--r-- | 1.6 KB |
| Makefile.asm-generic | -rw-r--r-- | 1.8 KB |
| Makefile.build | -rw-r--r-- | 18.2 KB |
| Makefile.clean | -rw-r--r-- | 2.2 KB |
| Makefile.compiler | -rw-r--r-- | 2.7 KB |
| Makefile.dtbinst | -rw-r--r-- | 999 bytes |
| Makefile.extrawarn | -rw-r--r-- | 2.8 KB |
| Makefile.gcc-plugins | -rw-r--r-- | 2.5 KB |
| Makefile.headersinst | -rw-r--r-- | 2.9 KB |
| Makefile.host | -rw-r--r-- | 4.6 KB |
| Makefile.kasan | -rw-r--r-- | 1.6 KB |
| Makefile.kcov | -rw-r--r-- | 333 bytes |
| Makefile.kcsan | -rw-r--r-- | 739 bytes |
| Makefile.lib | -rw-r--r-- | 18.3 KB |
| Makefile.modfinal | -rw-r--r-- | 3.2 KB |
| Makefile.modinst | -rw-r--r-- | 2.4 KB |
| Makefile.modpost | -rw-r--r-- | 4.9 KB |
| Makefile.package | -rw-r--r-- | 6.6 KB |
| Makefile.ubsan | -rw-r--r-- | 837 bytes |
| Makefile.userprogs | -rw-r--r-- | 1.6 KB |
| adjust_autoksyms.sh | -rwxr-xr-x | 2.1 KB |
| as-version.sh | -rwxr-xr-x | 2.0 KB |
| asn1_compiler.c | -rw-r--r-- | 35.3 KB |
| bin2c.c | -rw-r--r-- | 743 bytes |
| bloat-o-meter | -rwxr-xr-x | 3.4 KB |
| bootgraph.pl | -rwxr-xr-x | 5.6 KB |
| bpf_doc.py | -rwxr-xr-x | 24.9 KB |
| cc-can-link.sh | -rwxr-xr-x | 166 bytes |
| cc-version.sh | -rwxr-xr-x | 1.5 KB |
| check-sysctl-docs | -rwxr-xr-x | 4.4 KB |
| check_extable.sh | -rwxr-xr-x | 4.9 KB |
| checkdeclares.pl | -rw-r--r-- | 1.1 KB |
| checkincludes.pl | -rwxr-xr-x | 1.9 KB |
| checkkconfigsymbols.py | -rwxr-xr-x | 15.5 KB |
| checkpatch.pl | -rwxr-xr-x | 222.4 KB |
| checkstack.pl | -rwxr-xr-x | 5.9 KB |
| checksyscalls.sh | -rwxr-xr-x | 7.3 KB |
| checkversion.pl | -rwxr-xr-x | 1.9 KB |
| cleanfile | -rwxr-xr-x | 3.5 KB |
| cleanpatch | -rwxr-xr-x | 5.1 KB |
| coccicheck | -rwxr-xr-x | 7.9 KB |
| config | -rwxr-xr-x | 4.7 KB |
| const_structs.checkpatch | -rw-r--r-- | 1009 bytes |
| decode_stacktrace.sh | -rwxr-xr-x | 5.2 KB |
| decodecode | -rwxr-xr-x | 2.9 KB |
| depmod.sh | -rwxr-xr-x | 1.4 KB |
| dev-needs.sh | -rwxr-xr-x | 6.1 KB |
| diffconfig | -rwxr-xr-x | 3.7 KB |
| documentation-file-ref-check | -rwxr-xr-x | 5.6 KB |
| export_report.pl | -rwxr-xr-x | 4.5 KB |
| extract-cert.c | -rw-r--r-- | 3.5 KB |
| extract-ikconfig | -rwxr-xr-x | 1.7 KB |
| extract-module-sig.pl | -rwxr-xr-x | 3.7 KB |
| extract-sys-certs.pl | -rwxr-xr-x | 3.7 KB |
| extract-vmlinux | -rwxr-xr-x | 1.7 KB |
| extract_xc3028.pl | -rwxr-xr-x | 44.6 KB |
| faddr2line | -rwxr-xr-x | 6.2 KB |
| file-size.sh | -rwxr-xr-x | 86 bytes |
| find-unused-docs.sh | -rwxr-xr-x | 1.3 KB |
| gcc-goto.sh | -rwxr-xr-x | 511 bytes |
| gcc-ld | -rwxr-xr-x | 711 bytes |
| gcc-x86_32-has-stack-protector.sh | -rwxr-xr-x | 408 bytes |
| gcc-x86_64-has-stack-protector.sh | -rwxr-xr-x | 198 bytes |
| gen_autoksyms.sh | -rwxr-xr-x | 2.0 KB |
| gen_ksymdeps.sh | -rwxr-xr-x | 399 bytes |
| generate_initcall_order.pl | -rwxr-xr-x | 5.9 KB |
| get_abi.pl | -rwxr-xr-x | 15.1 KB |
| get_dvb_firmware | -rwxr-xr-x | 24.5 KB |
| get_feat.pl | -rwxr-xr-x | 14.3 KB |
| get_maintainer.pl | -rwxr-xr-x | 67.1 KB |
| gfp-translate | -rwxr-xr-x | 1.7 KB |
| headerdep.pl | -rwxr-xr-x | 3.5 KB |
| headers_check.pl | -rwxr-xr-x | 3.7 KB |
| headers_install.sh | -rwxr-xr-x | 3.4 KB |
| insert-sys-cert.c | -rw-r--r-- | 8.9 KB |
| jobserver-exec | -rwxr-xr-x | 2.2 KB |
| kallsyms.c | -rw-r--r-- | 18.1 KB |
| kernel-doc | -rwxr-xr-x | 69.0 KB |
| ld-version.sh | -rwxr-xr-x | 1.7 KB |
| leaking_addresses.pl | -rwxr-xr-x | 12.8 KB |
| link-vmlinux.sh | -rwxr-xr-x | 11.1 KB |
| makelst | -rwxr-xr-x | 808 bytes |
| markup_oops.pl | -rwxr-xr-x | 7.9 KB |
| min-tool-version.sh | -rwxr-xr-x | 631 bytes |
| mkcompile_h | -rwxr-xr-x | 2.3 KB |
| mkmakefile | -rwxr-xr-x | 426 bytes |
| mksysmap | -rwxr-xr-x | 1.3 KB |
| mkuboot.sh | -rwxr-xr-x | 414 bytes |
| module.lds.S | -rw-r--r-- | 1.5 KB |
| modules-check.sh | -rwxr-xr-x | 427 bytes |
| nsdeps | -rw-r--r-- | 1.7 KB |
| objdiff | -rwxr-xr-x | 2.8 KB |
| parse-maintainers.pl | -rwxr-xr-x | 4.5 KB |
| patch-kernel | -rwxr-xr-x | 9.9 KB |
| profile2linkerlist.pl | -rwxr-xr-x | 414 bytes |
| prune-kernel | -rwxr-xr-x | 708 bytes |
| recordmcount.c | -rw-r--r-- | 16.7 KB |
| recordmcount.h | -rw-r--r-- | 19.3 KB |
| recordmcount.pl | -rwxr-xr-x | 18.7 KB |
| remove-stale-files | -rwxr-xr-x | 1.3 KB |
| setlocalversion | -rwxr-xr-x | 4.7 KB |
| show_delta | -rwxr-xr-x | 3.0 KB |
| sign-file.c | -rw-r--r-- | 9.8 KB |
| sorttable.c | -rw-r--r-- | 8.7 KB |
| sorttable.h | -rw-r--r-- | 9.7 KB |
| spdxcheck-test.sh | -rw-r--r-- | 323 bytes |
| spdxcheck.py | -rwxr-xr-x | 10.1 KB |
| spelling.txt | -rw-r--r-- | 31.6 KB |
| sphinx-pre-install | -rwxr-xr-x | 21.7 KB |
| split-man.pl | -rwxr-xr-x | 604 bytes |
| stackdelta | -rwxr-xr-x | 1.8 KB |
| stackusage | -rwxr-xr-x | 794 bytes |
| subarch.include | -rw-r--r-- | 641 bytes |
| syscallhdr.sh | -rwxr-xr-x | 1.9 KB |
| syscalltbl.sh | -rwxr-xr-x | 1.3 KB |
| tags.sh | -rwxr-xr-x | 9.6 KB |
| tools-support-relr.sh | -rwxr-xr-x | 518 bytes |
| unifdef.c | -rw-r--r-- | 34.8 KB |
| ver_linux | -rwxr-xr-x | 2.6 KB |
| xen-hypercalls.sh | -rw-r--r-- | 386 bytes |
| xz_wrap.sh | -rwxr-xr-x | 563 bytes |
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