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| author | Rémi Denis-Courmont <remi@remlab.net> | 2019-07-04 10:41:15 +0200 |
|---|---|---|
| committer | Laurent Vivier <laurent@vivier.eu> | 2019-07-18 13:57:28 +0200 |
| commit | 0acd4ab849827bbc20402e01c9da088207c0d236 (patch) | |
| tree | 2d448ea155de3d8f39ff22424e038af0b7598668 /linux-user/ioctls.h | |
| parent | 4ced996ffe3f08883fa5bd423bcfafdfd6f13189 (diff) | |
linux-user: check valid address in access_ok()
Fix a crash with LTP testsuite and aarch64:
tst_test.c:1015: INFO: Timeout per run is 0h 05m 00s
qemu-aarch64: .../qemu/accel/tcg/translate-all.c:2522: page_check_range: Assertion `start < ((target_ulong)1 << L1_MAP_ADDR_SPACE_BITS)' failed.
qemu:handle_cpu_signal received signal outside vCPU context @ pc=0x60001554
page_check_range() should never be called with address outside the guest
address space. This patch adds a guest_addr_valid() check in access_ok()
to only call page_check_range() with a valid address.
Fixes: f6768aa1b4c6 ("target/arm: fix AArch64 virtual address space size")
Signed-off-by: Rémi Denis-Courmont <remi@remlab.net>
Signed-off-by: Laurent Vivier <lvivier@redhat.com>
Message-Id: <20190704084115.24713-1-lvivier@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Diffstat (limited to 'linux-user/ioctls.h')
0 files changed, 0 insertions, 0 deletions