Re: [PATCH V1] block: Fix use-after-free while iterating over requests

2020-11-30 Thread Bart Van Assche
On 11/29/20 11:04 PM, Hannes Reinecke wrote: > On 11/26/20 5:49 PM, John Garry wrote: >> On 26/11/2020 16:27, Bart Van Assche wrote: >>> On 11/26/20 7:02 AM, Pradeep P V K wrote: Observes below crash while accessing (use-after-free) request queue member of struct request. 191.78

Re: [PATCH V1] block: Fix use-after-free while iterating over requests

2020-11-30 Thread John Garry
On 30/11/2020 07:04, Hannes Reinecke wrote: On 11/26/20 5:49 PM, John Garry wrote: On 26/11/2020 16:27, Bart Van Assche wrote: On 11/26/20 7:02 AM, Pradeep P V K wrote: Observes below crash while accessing (use-after-free) request queue member of struct request. 191.784789:   <2> Unable to ha

Re: [PATCH V1] block: Fix use-after-free while iterating over requests

2020-11-29 Thread Hannes Reinecke
On 11/26/20 5:49 PM, John Garry wrote: On 26/11/2020 16:27, Bart Van Assche wrote: On 11/26/20 7:02 AM, Pradeep P V K wrote: Observes below crash while accessing (use-after-free) request queue member of struct request. 191.784789:   <2> Unable to handle kernel paging request at virtual address

Re: [PATCH V1] block: Fix use-after-free while iterating over requests

2020-11-26 Thread John Garry
On 26/11/2020 16:27, Bart Van Assche wrote: On 11/26/20 7:02 AM, Pradeep P V K wrote: Observes below crash while accessing (use-after-free) request queue member of struct request. 191.784789: <2> Unable to handle kernel paging request at virtual address ff81429a4440 ... 191.786174: <2>

Re: [PATCH V1] block: Fix use-after-free while iterating over requests

2020-11-26 Thread Bart Van Assche
On 11/26/20 7:02 AM, Pradeep P V K wrote: > Observes below crash while accessing (use-after-free) request queue > member of struct request. > > 191.784789: <2> Unable to handle kernel paging request at virtual > address ff81429a4440 > ... > 191.786174: <2> CPU: 3 PID: 213 Comm: kworker/3:1

[PATCH V1] block: Fix use-after-free while iterating over requests

2020-11-26 Thread Pradeep P V K
Observes below crash while accessing (use-after-free) request queue member of struct request. 191.784789: <2> Unable to handle kernel paging request at virtual address ff81429a4440 ... 191.786174: <2> CPU: 3 PID: 213 Comm: kworker/3:1H Tainted: G S O 5.4.61-qgki-debug-ge45de39 #1 ...