Hello,
54d217406afe250d7a768783baaa79a035f21d38 fixed an issue in drm_dp_add_payload_part2 that lead to a NULL pointer dereference in case state is NULL.
The change was (accidentally?) reverted in 5aa1dfcdf0a429e4941e2eef75b006a8c7a8ac49 and the problem reappeared.
The issue is rather spurious, but I've had it appear when unplugging a thunderbolt dock.
#regzbot introduced 5aa1dfcdf0a429e4941e2eef75b006a8c7a8ac49
[Public]
Hi,
Thanks for the catch! Will prepare a patch to fix it.
Thanks, Wayne Lin
________________________________________ From: Leon Weiß leon.weiss@ruhr-uni-bochum.de Sent: Wednesday, February 7, 2024 16:45 To: stable@vger.kernel.org Cc: regressions@lists.linux.dev; Lin, Wayne; lyude@redhat.com Subject: [REGRESSION] NULL pointer dereference drm_dp_add_payload_part2
Hello,
54d217406afe250d7a768783baaa79a035f21d38 fixed an issue in drm_dp_add_payload_part2 that lead to a NULL pointer dereference in case state is NULL.
The change was (accidentally?) reverted in 5aa1dfcdf0a429e4941e2eef75b006a8c7a8ac49 and the problem reappeared.
The issue is rather spurious, but I've had it appear when unplugging a thunderbolt dock.
#regzbot introduced 5aa1dfcdf0a429e4941e2eef75b006a8c7a8ac49
On 19.02.24 08:24, Lin, Wayne wrote:
Thanks for the catch! Will prepare a patch to fix it.
Did you do that? I could not find one on lore, but maybe I'm missing something.
Ciao, Thorsten (wearing his 'the Linux kernel's regression tracker' hat) -- Everything you wanna know about Linux kernel regression tracking: https://linux-regtracking.leemhuis.info/about/#tldr If I did something stupid, please tell me, as explained on that page.
#regzbot poke
From: Leon Weiß leon.weiss@ruhr-uni-bochum.de Sent: Wednesday, February 7, 2024 16:45 To: stable@vger.kernel.org Cc: regressions@lists.linux.dev; Lin, Wayne; lyude@redhat.com Subject: [REGRESSION] NULL pointer dereference drm_dp_add_payload_part2
Hello,
54d217406afe250d7a768783baaa79a035f21d38 fixed an issue in drm_dp_add_payload_part2 that lead to a NULL pointer dereference in case state is NULL.
The change was (accidentally?) reverted in 5aa1dfcdf0a429e4941e2eef75b006a8c7a8ac49 and the problem reappeared.
The issue is rather spurious, but I've had it appear when unplugging a thunderbolt dock.
#regzbot introduced 5aa1dfcdf0a429e4941e2eef75b006a8c7a8ac49
[Public]
-----Original Message----- From: Linux regression tracking (Thorsten Leemhuis) regressions@leemhuis.info Sent: Wednesday, February 28, 2024 3:53 PM To: Lin, Wayne Wayne.Lin@amd.com; Leon Weiß <leon.weiss@ruhr-uni- bochum.de>; stable@vger.kernel.org Cc: regressions@lists.linux.dev; lyude@redhat.com Subject: Re: [REGRESSION] NULL pointer dereference drm_dp_add_payload_part2
On 19.02.24 08:24, Lin, Wayne wrote:
Thanks for the catch! Will prepare a patch to fix it.
Did you do that? I could not find one on lore, but maybe I'm missing something.
Hi, Sorry for the delay. Was dragged and distracted by other works. Just pushed the patch today for code review. Thanks!
Ciao, Thorsten (wearing his 'the Linux kernel's regression tracker' hat)
Everything you wanna know about Linux kernel regression tracking: https://linux-regtracking.leemhuis.info/about/#tldr If I did something stupid, please tell me, as explained on that page.
#regzbot poke
From: Leon Weiß leon.weiss@ruhr-uni-bochum.de Sent: Wednesday, February 7, 2024 16:45 To: stable@vger.kernel.org Cc: regressions@lists.linux.dev; Lin, Wayne; lyude@redhat.com Subject: [REGRESSION] NULL pointer dereference drm_dp_add_payload_part2
Hello,
54d217406afe250d7a768783baaa79a035f21d38 fixed an issue in drm_dp_add_payload_part2 that lead to a NULL pointer dereference in case state is NULL.
The change was (accidentally?) reverted in 5aa1dfcdf0a429e4941e2eef75b006a8c7a8ac49 and the problem
reappeared.
The issue is rather spurious, but I've had it appear when unplugging a thunderbolt dock.
#regzbot introduced 5aa1dfcdf0a429e4941e2eef75b006a8c7a8ac49
linux-stable-mirror@lists.linaro.org
-
Leon Weiß -
Lin, Wayne -
Linux regression tracking (Thorsten Leemhuis)