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charset="us-ascii"; Format="flowed" Sender: devel-bounces@openvz.org Errors-To: devel-bounces@openvz.org Please, don't take it with this series. The problem exists without the patches and we'd better add a proper fix in a separate series under the task VSTOR-146839. On 9/15/26 19:22, Vladimir Riabchun wrote: > get_exec_env() in interrupt context will return VE of the process > that was interrupted. > We don't want to leak logs to unrelated containers if we use > ve_printk in a function that may be called in an interrupt. > > https://virtuozzo.atlassian.net/browse/VSTOR-135520 > Signed-off-by: Vladimir Riabchun > --- > kernel/printk/printk.c | 7 ++++--- > 1 file changed, 4 insertions(+), 3 deletions(-) > > diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c > index 8940b36e790b..90ecd7960800 100644 > --- a/kernel/printk/printk.c > +++ b/kernel/printk/printk.c > @@ -560,7 +560,8 @@ struct log_state *ve_log_state(void) > { > struct log_state *log = &init_log_state; > #ifdef CONFIG_VE > - if (get_exec_env()->log_state) > + /* get_exec_env() is not reliable outside task context */ > + if (get_exec_env()->log_state && in_task()) > log = get_exec_env()->log_state; > #endif > return log; > @@ -2538,7 +2539,7 @@ static asmlinkage int ve_vprintk(int dst, const char *fmt, va_list args) > va_copy(args2, args); > if (ve_is_super(get_exec_env()) || (dst & VE0_LOG)) > r = vprintk(fmt, args); > - if (!ve_is_super(get_exec_env()) && (dst & VE_LOG)) > + if (!ve_is_super(get_exec_env()) && (dst & VE_LOG) && in_task()) > r = ve_vprintk_emit(0, LOGLEVEL_DEFAULT, NULL, fmt, args2); > va_end(args2); > > @@ -2570,7 +2571,7 @@ static asmlinkage int ve_vprintk_deferred(int dst, const char *fmt, va_list args > va_copy(args2, args); > if (ve_is_super(get_exec_env()) || (dst & VE0_LOG)) > r = vprintk_emit(0, LOGLEVEL_SCHED, NULL, fmt, args); > - if (!ve_is_super(get_exec_env()) && (dst & VE_LOG)) > + if (!ve_is_super(get_exec_env()) && (dst & VE_LOG) && in_task()) > r = ve_vprintk_emit(0, LOGLEVEL_SCHED, NULL, fmt, args2); > va_end(args2); > -- Best regards, Riabchun Vladimir Linux Kernel Developer, Virtuozzo _______________________________________________ Devel mailing list Devel@openvz.org https://lists.openvz.org/mailman/listinfo/devel