发布时间: 2024年10月12日
修改时间: 2024年11月1日
In the Linux kernel, the following vulnerability has been resolved:drm/msm/dpu: cleanup FB if dpu_format_populate_layout failsIf the dpu_format_populate_layout() fails, then FB is prepared, but notcleaned up. This ends up leaking the pin_count on the GEM object andcauses a splat during DRM file closure:msm_obj->pin_countWARNING: CPU: 2 PID: 569 at drivers/gpu/drm/msm/msm_gem.c:121 update_lru_locked+0xc4/0xcc[...]Call trace: update_lru_locked+0xc4/0xcc put_pages+0xac/0x100 msm_gem_free_object+0x138/0x180 drm_gem_object_free+0x1c/0x30 drm_gem_object_handle_put_unlocked+0x108/0x10c drm_gem_object_release_handle+0x58/0x70 idr_for_each+0x68/0xec drm_gem_release+0x28/0x40 drm_file_free+0x174/0x234 drm_release+0xb0/0x160 __fput+0xc0/0x2c8 __fput_sync+0x50/0x5c __arm64_sys_close+0x38/0x7c invoke_syscall+0x48/0x118 el0_svc_common.constprop.0+0x40/0xe0 do_el0_svc+0x1c/0x28 el0_svc+0x4c/0x120 el0t_64_sync_handler+0x100/0x12c el0t_64_sync+0x190/0x194irq event stamp: 129818hardirqs last enabled at (129817): [<ffffa5f6d953fcc0>] console_unlock+0x118/0x124hardirqs last disabled at (129818): [<ffffa5f6da7dcf04>] el1_dbg+0x24/0x8csoftirqs last enabled at (129808): [<ffffa5f6d94afc18>] handle_softirqs+0x4c8/0x4e8softirqs last disabled at (129785): [<ffffa5f6d94105e4>] __do_softirq+0x14/0x20Patchwork: https://patchwork.freedesktop.org/patch/600714/
| NVD | openEuler | |
|---|---|---|
| Confidentiality | None | Low |
| Attack Vector | Local | Local |
| CVSS评分 | 5.5 | 3.9 |
| Attack Complexity | Low | High |
| Privileges Required | Low | High |
| Scope | Unchanged | Unchanged |
| Integrity | None | Low |
| User Interaction | None | None |
| Availability | High | Low |
| 公告名 | 概要 | 发布时间 |
|---|---|---|
| KylinSec-SA-2024-4987 | kernel security update | 2025年7月18日 |
| 产品 | 包 | 状态 |
|---|---|---|
| KY3.5.2 | kernel | Fixed |
| V6 | kernel | Fixed |
| KY3.5.3 | kernel | Fixed |
