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| author | Jacob Keller <jacob.e.keller@intel.com> | 2021-09-08 10:52:36 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-10-06 15:42:33 +0200 |
| commit | 93372e02f9698ec15e761e71de00ad64cc8d3688 (patch) | |
| tree | af53bb6a80b458f9b1ae64e494aebea7f6eeb6cf /net/unix/af_unix.c | |
| parent | a2624e0934f0fe30770eb93955958c5f9f92af5a (diff) | |
e100: fix length calculation in e100_get_regs_len
[ Upstream commit 4329c8dc110b25d5f04ed20c6821bb60deff279f ]
commit abf9b902059f ("e100: cleanup unneeded math") tried to simplify
e100_get_regs_len and remove a double 'divide and then multiply'
calculation that the e100_reg_regs_len function did.
This change broke the size calculation entirely as it failed to account
for the fact that the numbered registers are actually 4 bytes wide and
not 1 byte. This resulted in a significant under allocation of the
register buffer used by e100_get_regs.
Fix this by properly multiplying the register count by u32 first before
adding the size of the dump buffer.
Fixes: abf9b902059f ("e100: cleanup unneeded math")
Reported-by: Felicitas Hetzelt <felicitashetzelt@gmail.com>
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'net/unix/af_unix.c')
0 files changed, 0 insertions, 0 deletions