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[Qemu-devel] [PATCH 7/7] linux-user: Do not ignore mmap failure from hos
From: |
riku . voipio |
Subject: |
[Qemu-devel] [PATCH 7/7] linux-user: Do not ignore mmap failure from host |
Date: |
Wed, 10 Jul 2013 13:20:50 +0300 |
From: Jürg Billeter <address@hidden>
File mapping may fail with EACCES.
Signed-off-by: Jürg Billeter <address@hidden>
Message-id: address@hidden
Reviewed-by: Peter Maydell <address@hidden>
---
linux-user/mmap.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/linux-user/mmap.c b/linux-user/mmap.c
index b412e3f..de22197 100644
--- a/linux-user/mmap.c
+++ b/linux-user/mmap.c
@@ -483,6 +483,10 @@ abi_long target_mmap(abi_ulong start, abi_ulong len, int
prot,
if (!(flags & MAP_ANONYMOUS)) {
p = mmap(g2h(start), len, prot,
flags | MAP_FIXED, fd, host_offset);
+ if (p == MAP_FAILED) {
+ munmap(g2h(start), host_len);
+ goto fail;
+ }
host_start += offset - host_offset;
}
start = h2g(host_start);
--
1.8.1.2
- [Qemu-devel] [PULL] linux-user fixes, riku . voipio, 2013/07/10
- [Qemu-devel] [PATCH 5/7] user-exec.c: Set is_write correctly in the ARM cpu_signal_handler(), riku . voipio, 2013/07/10
- [Qemu-devel] [PATCH 1/7] linux-user: handle /proc/$$ like /proc/self, riku . voipio, 2013/07/10
- [Qemu-devel] [PATCH 2/7] linux-user: add SIOCADDRT/SIOCDELRT support, riku . voipio, 2013/07/10
- [Qemu-devel] [PATCH 4/7] linux-user: Fix sys_utimensat (would not compile on old glibc), riku . voipio, 2013/07/10
- [Qemu-devel] [PATCH 3/7] linux-user: fix signal number range check, riku . voipio, 2013/07/10
- [Qemu-devel] [PATCH 6/7] linux-user: improve target_to_host_sock_type conversion, riku . voipio, 2013/07/10
- [Qemu-devel] [PATCH 7/7] linux-user: Do not ignore mmap failure from host,
riku . voipio <=
- Re: [Qemu-devel] [PULL] linux-user fixes, Anthony Liguori, 2013/07/10