diff options
| author | Maxim Kuvyrkov <maxim@kugelworks.com> | 2013-12-24 09:44:50 +1300 |
|---|---|---|
| committer | Maxim Kuvyrkov <maxim@kugelworks.com> | 2013-12-24 09:44:50 +1300 |
| commit | 362b47fe09ca9a928d444c7e2f7992f7f61bfc3e (patch) | |
| tree | 6279f6a26cf21a076aeee89081d4cc350ed8dc74 /NEWS | |
| parent | b9bcbbcbe7afa94442d335811d4a1c1e0c0a1daf (diff) | |
Fix race in free() of fastbin chunk: BZ #15073
Perform sanity check only if we have_lock. Due to lockless nature of fastbins
we need to be careful derefencing pointers to fastbin entries (chunksize(old)
in this case) in multithreaded environments.
The fix is to add have_lock to the if-condition checks. The rest of the patch
only makes code more readable.
* malloc/malloc.c (_int_free): Perform sanity check only if we
have_lock.
Diffstat (limited to 'NEWS')
| -rw-r--r-- | NEWS | 22 |
1 files changed, 11 insertions, 11 deletions
@@ -12,17 +12,17 @@ Version 2.19 156, 387, 431, 832, 926, 2801, 4772, 6786, 6787, 6807, 6810, 7003, 9954, 10253, 10278, 11087, 11157, 11214, 12100, 12486, 12986, 13028, 13982, 13985, 14029, 14032, 14120, 14143, 14155, 14547, 14699, 14752, 14876, - 14910, 15004, 15048, 15089, 15128, 15218, 15268, 15277, 15308, 15362, - 15374, 15400, 15425, 15427, 15483, 15522, 15531, 15532, 15593, 15601, - 15608, 15609, 15610, 15632, 15640, 15670, 15672, 15680, 15681, 15723, - 15734, 15735, 15736, 15748, 15749, 15754, 15760, 15763, 15764, 15797, - 15799, 15825, 15843, 15844, 15846, 15847, 15849, 15855, 15856, 15857, - 15859, 15867, 15886, 15887, 15890, 15892, 15893, 15895, 15897, 15901, - 15905, 15909, 15915, 15917, 15919, 15921, 15923, 15939, 15941, 15948, - 15963, 15966, 15985, 15988, 15997, 16032, 16034, 16036, 16037, 16038, - 16041, 16055, 16071, 16072, 16074, 16077, 16078, 16103, 16112, 16143, - 16144, 16146, 16150, 16151, 16153, 16167, 16172, 16195, 16214, 16245, - 16356. + 14910, 15004, 15048, 15073, 15089, 15128, 15218, 15268, 15277, 15308, + 15362, 15374, 15400, 15425, 15427, 15483, 15522, 15531, 15532, 15593, + 15601, 15608, 15609, 15610, 15632, 15640, 15670, 15672, 15680, 15681, + 15723, 15734, 15735, 15736, 15748, 15749, 15754, 15760, 15763, 15764, + 15797, 15799, 15825, 15843, 15844, 15846, 15847, 15849, 15855, 15856, + 15857, 15859, 15867, 15886, 15887, 15890, 15892, 15893, 15895, 15897, + 15901, 15905, 15909, 15915, 15917, 15919, 15921, 15923, 15939, 15941, + 15948, 15963, 15966, 15985, 15988, 15997, 16032, 16034, 16036, 16037, + 16038, 16041, 16055, 16071, 16072, 16074, 16077, 16078, 16103, 16112, + 16143, 16144, 16146, 16150, 16151, 16153, 16167, 16172, 16195, 16214, + 16245, 16356. * The public headers no longer use __unused nor __block. This change is to support compiling programs that are derived from BSD sources and use |