| commit | ee8104bbaa41271be7814428023dd6d8937b9191 | |
| author | Petr Tesarik <petr@tesarici.cz> | |
| Thu, 27 Sep 2012 15:45:41 +0000 (27 17:45 +0200) | ||
| committer | Petr Tesarik <petr@tesarici.cz> | |
| Thu, 27 Sep 2012 15:45:41 +0000 (27 17:45 +0200) | ||
| tree | 2e2b136af38e56ad0f7966af6ef94841d94cd104 | treesnapshot (tar.gz zip) |
| parent | e459d77188ee07752e978ec026af35e53c638672 | commitdiff |
Fix incorrect masking in swp_getmapping()
This is broken on 64-bit architectures, because (unsigned long) mapof
is 64 bits and (unsigned int) SWP_MAPSIZE is only 32-bit, so, we are
masking off the high 32 bits of mapoff. Of course, this bug is really
hard to trigger, because a mapoff greater than 2^32 needs a swap
position larger than than 2^42 (4 TiB).
This is broken on 64-bit architectures, because (unsigned long) mapof
is 64 bits and (unsigned int) SWP_MAPSIZE is only 32-bit, so, we are
masking off the high 32 bits of mapoff. Of course, this bug is really
hard to trigger, because a mapoff greater than 2^32 needs a swap
position larger than than 2^42 (4 TiB).
| libhed/swap.c | diffblobblamehistory |