| commit | d9a5eba477e7ed7183a6d417755790d6ecf22cad | |
| author | Stephen Long <steplong@quicinc.com> | |
| Thu, 7 May 2020 13:03:02 +0000 (7 06:03 -0700) | ||
| committer | Laurent Vivier <laurent@vivier.eu> | |
| Fri, 23 Oct 2020 12:21:15 +0000 (23 14:21 +0200) | ||
| tree | 9b0c8ba5f23fef7f02e788ff1662a01da66c8762 | treesnapshot (tar.gz zip) |
| parent | 4c5b97bfd0dd54dc27717ae8d1cd10e14eef1430 | commitdiff |
Fix stack smashing when handling PR_GET_PDEATHSIG
The bug was triggered by the following code on aarch64-linux-user:
int main(void)
{
int PDeathSig = 0;
if (prctl(PR_GET_PDEATHSIG, &PDeathSig) == 0 && PDeathSig == SIGKILL)
prctl(PR_GET_PDEATHSIG, 0);
return (PDeathSig == SIGKILL);
}
Signed-off-by: Stephen Long <steplong@quicinc.com>
Signed-off-by: Ana Pazos <apazos@quicinc.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20200507130302.3684-1-steplong@quicinc.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
The bug was triggered by the following code on aarch64-linux-user:
int main(void)
{
int PDeathSig = 0;
if (prctl(PR_GET_PDEATHSIG, &PDeathSig) == 0 && PDeathSig == SIGKILL)
prctl(PR_GET_PDEATHSIG, 0);
return (PDeathSig == SIGKILL);
}
Signed-off-by: Stephen Long <steplong@quicinc.com>
Signed-off-by: Ana Pazos <apazos@quicinc.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20200507130302.3684-1-steplong@quicinc.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
| linux-user/syscall.c | diffblobblamehistory |