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| author | Mark O'Donovan <shiftee@posteo.net> | 2023-08-04 12:32:18 +0300 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2023-08-11 14:19:52 +0300 |
| commit | 9e47a758b70167c9301d2b44d2569f86c7796f2d (patch) | |
| tree | f8c04f99ee1676efb3a0827c4fa5e7933598f145 /crypto | |
| parent | 2a598d0b2800aa23ba51adcf060cec524aaa63b2 (diff) | |
| download | linux-9e47a758b70167c9301d2b44d2569f86c7796f2d.tar.xz | |
crypto: lib/mpi - avoid null pointer deref in mpi_cmp_ui()
During NVMeTCP Authentication a controller can trigger a kernel
oops by specifying the 8192 bit Diffie Hellman group and passing
a correctly sized, but zeroed Diffie Hellamn value.
mpi_cmp_ui() was detecting this if the second parameter was 0,
but 1 is passed from dh_is_pubkey_valid(). This causes the null
pointer u->d to be dereferenced towards the end of mpi_cmp_ui()
Signed-off-by: Mark O'Donovan <shiftee@posteo.net>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto')
0 files changed, 0 insertions, 0 deletions