mirrors/qemu
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

migration/dirtyrate: Fix segmentation fault

Browse Source 
Since the kvm_dirty_ring_enabled function accesses a null kvm_state
pointer when the KVM acceleration parameter is not specified, running
calc_dirty_rate with the -r or -b option causes a segmentation fault.

Signed-off-by: Masato Imai <mii@sfc.wide.ad.jp>
Message-ID: <20240507025010.1968881-1-mii@sfc.wide.ad.jp>
[Assert kvm_state when kvm_dirty_ring_enabled was called to fix it. - Hyman]
Signed-off-by: Hyman Huang <yong.huang@smartx.com>
This commit is contained in:
Masato Imai 2024-06-17 22:46:04 +08:00 committed by Hyman Huang
parent 05ad1440b8
commit e65152d548
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
accel/kvm/kvm-all.c
View File

@ -2329,7 +2329,7 @@ bool kvm_vcpu_id_is_valid(int vcpu_id)
bool kvm_dirty_ring_enabled(void) bool kvm_dirty_ring_enabled(void)
{ {
return kvm_state->kvm_dirty_ring_size ? true : false; return kvm_state && kvm_state->kvm_dirty_ring_size;
} }
static void query_stats_cb(StatsResultList **result, StatsTarget target, static void query_stats_cb(StatsResultList **result, StatsTarget target,