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author | Dmitry V. Levin <ldv@altlinux.org> | 2016-12-26 01:21:04 +0000 |
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committer | Dmitry V. Levin <ldv@altlinux.org> | 2016-12-26 10:08:53 +0000 |
commit | 11aa97bfba59f709a34b5477ce2cc67cd81ee788 (patch) | |
tree | a7e580c9f8bafd3a89ed8df670834b155ee1c47c /kexec.c | |
parent | 9cd050573c0b24b57cb046240559937a9cd7f7df (diff) | |
download | strace-11aa97bfba59f709a34b5477ce2cc67cd81ee788.tar.gz |
vm_read_mem: detect address truncation
When sizeof(kernel_ureg_t) > sizeof(long), the tracee address passed
to vm_read_mem could be silently truncated. Detect this situation
and return EIO when the tracee address does not fit into unsigned long.
* util.c (vm_read_mem): Save raddr argument into a temporary variable
truncated_raddr of type unsigned long. Set errno to EIO and return -1
when truncated_raddr does not equal to raddr.
Diffstat (limited to 'kexec.c')
0 files changed, 0 insertions, 0 deletions