e1000e: fix heap overflow in e1000_set_eeprom

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commit 90fb7db49c upstream.

Fix a possible heap overflow in e1000_set_eeprom function by adding
input validation for the requested length of the change in the EEPROM.
In addition, change the variable type from int to size_t for better
code practices and rearrange declarations to RCT.

Cc: stable@vger.kernel.org
Fixes: bc7f75fa97 ("[E1000E]: New pci-express e1000 driver (currently for ICH9 devices only)")
Co-developed-by: Mikael Wessel <post@mikaelkw.online>
Signed-off-by: Mikael Wessel <post@mikaelkw.online>
Signed-off-by: Vitaly Lifshits <vitaly.lifshits@intel.com>
Tested-by: Mor Bar-Gabay <morx.bar.gabay@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Vitaly Lifshits 2025-08-17 12:25:47 +03:00 • committed by Greg Kroah-Hartman

parent 65b98a7e65

commit b48adcacc3

1 changed files with 7 additions and 3 deletions

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drivers/net/ethernet/intel/e1000e/ethtool.c

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