Revision 342300cc9cd3428bc6bfe5809bfcc1b9a0f06702 authored by Martin Schwidefsky on 19 February 2016, 13:44:14 UTC, committed by Martin Schwidefsky on 22 February 2016, 08:29:35 UTC
git commit 8070361799ae1e3f4ef347bd10f0a508ac10acfb "s390: add support for vector extension" broke 31-bit compat processes in regard to signal handling. The restore_sigregs_ext32() function is used to restore the additional elements from the user space signal frame. Among the additional elements are the upper registers halves for 64-bit register support for 31-bit processes. The copy_from_user that is used to retrieve the high-gprs array from the user stack uses an incorrect length, 8 bytes instead of 64 bytes. This causes incorrect upper register halves to get loaded. Cc: stable@vger.kernel.org # 3.8+ Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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| File | Mode | Size |
|---|---|---|
| Makefile | -rw-r--r-- | 507 bytes |
| bootstr_32.c | -rw-r--r-- | 1.3 KB |
| bootstr_64.c | -rw-r--r-- | 1.2 KB |
| cif.S | -rw-r--r-- | 947 bytes |
| console_32.c | -rw-r--r-- | 1.2 KB |
| console_64.c | -rw-r--r-- | 976 bytes |
| init_32.c | -rw-r--r-- | 1.6 KB |
| init_64.c | -rw-r--r-- | 1.3 KB |
| memory.c | -rw-r--r-- | 1.9 KB |
| misc_32.c | -rw-r--r-- | 2.6 KB |
| misc_64.c | -rw-r--r-- | 8.8 KB |
| mp.c | -rw-r--r-- | 988 bytes |
| p1275.c | -rw-r--r-- | 1.1 KB |
| printf.c | -rw-r--r-- | 1.7 KB |
| ranges.c | -rw-r--r-- | 3.6 KB |
| tree_32.c | -rw-r--r-- | 7.0 KB |
| tree_64.c | -rw-r--r-- | 7.9 KB |
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