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issue处理注意事项:
1. 当前issue受影响的分支提交pr时, 须在pr描述中填写当前issue编号进行关联, 否则无法关闭当前issue;
2. 模板内容需要填写完整, 无论是受影响或者不受影响都需要填写完整内容,未引入的分支不需要填写, 否则无法关闭当前issue;
3. 以下为模板中需要填写完整的内容, 请复制到评论区回复, 注: 内容的标题名称(影响性分析说明, openEuler评分, 受影响版本排查(受影响/不受影响), 修复是否涉及abi变化(是/否))不能省略,省略后cve-manager将无法正常解析填写内容.

影响性分析说明:

openEuler评分: (评分和向量)

受影响版本排查(受影响/不受影响):
1.master(6.1.0):
2.openEuler-20.03-LTS-SP1(4.19.90):
3.openEuler-20.03-LTS-SP4(4.19.90):
4.openEuler-22.03-LTS(5.10.0):
5.openEuler-22.03-LTS-Next(5.10.0):
6.openEuler-22.03-LTS-SP1(5.10.0):
7.openEuler-22.03-LTS-SP2(5.10.0):
8.openEuler-22.03-LTS-SP3(5.10.0):

修复是否涉及abi变化(是/否)：
1.master(6.1.0):
2.openEuler-20.03-LTS-SP1(4.19.90):
3.openEuler-20.03-LTS-SP4(4.19.90):
4.openEuler-22.03-LTS(5.10.0):
5.openEuler-22.03-LTS-Next(5.10.0):
6.openEuler-22.03-LTS-SP1(5.10.0):
7.openEuler-22.03-LTS-SP2(5.10.0):
8.openEuler-22.03-LTS-SP3(5.10.0):

issue处理具体操作请参考:
https://gitee.com/openeuler/cve-manager/blob/master/cve-vulner-manager/doc/md/manual.md
pr关联issue具体操作请参考:
https://gitee.com/help/articles/4142

说明：补丁链接仅供初步排查参考，实际可用性请人工再次确认，补丁下载验证可使用CVE补丁工具。
若补丁不准确，烦请在此issue下评论 '/report-patch 参考网址 补丁链接1,补丁链接2' 反馈正确信息，便于我们不断优化工具，不胜感激。
如 /report-patch https://security-tracker.debian.org/tracker/CVE-2021-3997 https://github.com/systemd/systemd/commit/5b1cf7a9be37e20133c0208005274ce4a5b5c6a1

@ci-robot 请确认分支: master,openEuler-20.03-LTS-SP1,openEuler-20.03-LTS-SP4,openEuler-22.03-LTS,openEuler-22.03-LTS-Next,openEuler-22.03-LTS-SP1,openEuler-22.03-LTS-SP2,openEuler-22.03-LTS-SP3 受影响/不受影响.
请确认分支信息是否填写完整,否则将无法关闭当前issue.

@zhangjialin 请确认分支: master,openEuler-20.03-LTS-SP1,openEuler-20.03-LTS-SP4,openEuler-22.03-LTS,openEuler-22.03-LTS-Next,openEuler-22.03-LTS-SP1,openEuler-22.03-LTS-SP2,openEuler-22.03-LTS-SP3 受影响/不受影响.
请确认分支信息是否填写完整,否则将无法关闭当前issue.

CVE-2024-26607

影响性分析说明：
In the Linux kernel, the following vulnerability has been resolved:

drm/bridge: sii902x: Fix probing race issue

A null pointer dereference crash has been observed rarely on TI
platforms using sii9022 bridge:

[ 53.271356] sii902x_get_edid+0x34/0x70 [sii902x]
[ 53.276066] sii902x_bridge_get_edid+0x14/0x20 [sii902x]
[ 53.281381] drm_bridge_get_edid+0x20/0x34 [drm]
[ 53.286305] drm_bridge_connector_get_modes+0x8c/0xcc [drm_kms_helper]
[ 53.292955] drm_helper_probe_single_connector_modes+0x190/0x538 [drm_kms_helper]
[ 53.300510] drm_client_modeset_probe+0x1f0/0xbd4 [drm]
[ 53.305958] __drm_fb_helper_initial_config_and_unlock+0x50/0x510 [drm_kms_helper]
[ 53.313611] drm_fb_helper_initial_config+0x48/0x58 [drm_kms_helper]
[ 53.320039] drm_fbdev_dma_client_hotplug+0x84/0xd4 [drm_dma_helper]
[ 53.326401] drm_client_register+0x5c/0xa0 [drm]
[ 53.331216] drm_fbdev_dma_setup+0xc8/0x13c [drm_dma_helper]
[ 53.336881] tidss_probe+0x128/0x264 [tidss]
[ 53.341174] platform_probe+0x68/0xc4
[ 53.344841] really_probe+0x188/0x3c4
[ 53.348501] __driver_probe_device+0x7c/0x16c
[ 53.352854] driver_probe_device+0x3c/0x10c
[ 53.357033] __device_attach_driver+0xbc/0x158
[ 53.361472] bus_for_each_drv+0x88/0xe8
[ 53.365303] __device_attach+0xa0/0x1b4
[ 53.369135] device_initial_probe+0x14/0x20
[ 53.373314] bus_probe_device+0xb0/0xb4
[ 53.377145] deferred_probe_work_func+0xcc/0x124
[ 53.381757] process_one_work+0x1f0/0x518
[ 53.385770] worker_thread+0x1e8/0x3dc
[ 53.389519] kthread+0x11c/0x120
[ 53.392750] ret_from_fork+0x10/0x20

The issue here is as follows:

• tidss probes, but is deferred as sii902x is still missing.
• sii902x starts probing and enters sii902x_init().
• sii902x calls drm_bridge_add(). Now the sii902x bridge is ready from
  DRM's perspective.
• sii902x calls sii902x_audio_codec_init() and
  platform_device_register_data()
• The registration of the audio platform device causes probing of the
  deferred devices.
• tidss probes, which eventually causes sii902x_bridge_get_edid() to be
  called.
• sii902x_bridge_get_edid() tries to use the i2c to read the edid.
  However, the sii902x driver has not set up the i2c part yet, leading
  to the crash.

Fix this by moving the drm_bridge_add() to the end of the
sii902x_init(), which is also at the very end of sii902x_probe().

openEuler评分:(评分和向量)
4.7
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

受影响版本排查(受影响/不受影响):
1.openEuler-20.03-LTS-SP1(4.19.90):不受影响
2.openEuler-20.03-LTS-SP4:不受影响
3.openEuler-22.03-LTS:受影响
4.openEuler-22.03-LTS-SP1:受影响
5.openEuler-22.03-LTS-SP2:受影响
6.openEuler-22.03-LTS-SP3:受影响
7.master(6.1.0):不受影响
8.openEuler-22.03-LTS-Next:受影响
9.openEuler-24.03-LTS:不受影响

修复是否涉及abi变化(是/否)：
1.openEuler-20.03-LTS-SP1(4.19.90):否
2.openEuler-20.03-LTS-SP4:否
3.openEuler-22.03-LTS:否
4.openEuler-22.03-LTS-SP1:否
5.openEuler-22.03-LTS-SP2:否
6.openEuler-22.03-LTS-SP3:否
7.master(6.1.0):否
8.openEuler-22.03-LTS-Next:否
9.openEuler-24.03-LTS:否

@ 经过 cve-manager 解析, 已分析的内容如下表所示:

请确认分析内容的准确性, 确认无误后, 您可以进行后续步骤, 否则您可以继续分析.

@成坚 (CHENG Jian) ,@Xie XiuQi ,@YangYingliang ,@pi3orama ,@jiaoff ,@郭梦琪
关闭issue前,需要将受影响的分支在合并pr时关联上当前issue编号: #I94UOT:CVE-2024-26607
受影响分支: openEuler-22.03-LTS/openEuler-22.03-LTS-SP1/openEuler-22.03-LTS-SP2
具体操作参考: https://gitee.com/help/articles/4142

@openeuler-sync-bot 请确认分支: openEuler-24.03-LTS-Next 受影响/不受影响.
请确认分支信息是否填写完整,否则将无法关闭当前issue.

@openeuler-sync-bot 请确认分支: openEuler-24.03-LTS-Next 受影响/不受影响.
请确认分支信息是否填写完整,否则将无法关闭当前issue.

CVE-2024-26607

影响性分析说明：
In the Linux kernel, the following vulnerability has been resolved:

drm/bridge: sii902x: Fix probing race issue

A null pointer dereference crash has been observed rarely on TI
platforms using sii9022 bridge:

[ 53.271356] sii902x_get_edid+0x34/0x70 [sii902x]
[ 53.276066] sii902x_bridge_get_edid+0x14/0x20 [sii902x]
[ 53.281381] drm_bridge_get_edid+0x20/0x34 [drm]
[ 53.286305] drm_bridge_connector_get_modes+0x8c/0xcc [drm_kms_helper]
[ 53.292955] drm_helper_probe_single_connector_modes+0x190/0x538 [drm_kms_helper]
[ 53.300510] drm_client_modeset_probe+0x1f0/0xbd4 [drm]
[ 53.305958] __drm_fb_helper_initial_config_and_unlock+0x50/0x510 [drm_kms_helper]
[ 53.313611] drm_fb_helper_initial_config+0x48/0x58 [drm_kms_helper]
[ 53.320039] drm_fbdev_dma_client_hotplug+0x84/0xd4 [drm_dma_helper]
[ 53.326401] drm_client_register+0x5c/0xa0 [drm]
[ 53.331216] drm_fbdev_dma_setup+0xc8/0x13c [drm_dma_helper]
[ 53.336881] tidss_probe+0x128/0x264 [tidss]
[ 53.341174] platform_probe+0x68/0xc4
[ 53.344841] really_probe+0x188/0x3c4
[ 53.348501] __driver_probe_device+0x7c/0x16c
[ 53.352854] driver_probe_device+0x3c/0x10c
[ 53.357033] __device_attach_driver+0xbc/0x158
[ 53.361472] bus_for_each_drv+0x88/0xe8
[ 53.365303] __device_attach+0xa0/0x1b4
[ 53.369135] device_initial_probe+0x14/0x20
[ 53.373314] bus_probe_device+0xb0/0xb4
[ 53.377145] deferred_probe_work_func+0xcc/0x124
[ 53.381757] process_one_work+0x1f0/0x518
[ 53.385770] worker_thread+0x1e8/0x3dc
[ 53.389519] kthread+0x11c/0x120
[ 53.392750] ret_from_fork+0x10/0x20

The issue here is as follows:

• tidss probes, but is deferred as sii902x is still missing.
• sii902x starts probing and enters sii902x_init().
• sii902x calls drm_bridge_add(). Now the sii902x bridge is ready from
  DRM's perspective.
• sii902x calls sii902x_audio_codec_init() and
  platform_device_register_data()
• The registration of the audio platform device causes probing of the
  deferred devices.
• tidss probes, which eventually causes sii902x_bridge_get_edid() to be
  called.
• sii902x_bridge_get_edid() tries to use the i2c to read the edid.
  However, the sii902x driver has not set up the i2c part yet, leading
  to the crash.

Fix this by moving the drm_bridge_add() to the end of the
sii902x_init(), which is also at the very end of sii902x_probe().

openEuler评分:(评分和向量)
4.7
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

受影响版本排查(受影响/不受影响):
1.openEuler-20.03-LTS-SP1:不受影响
2.openEuler-20.03-LTS-SP4:不受影响
3.openEuler-22.03-LTS:受影响
4.openEuler-22.03-LTS-SP1:受影响
5.openEuler-22.03-LTS-SP2:受影响
6.openEuler-22.03-LTS-SP3:受影响
7.master(6.1.0):不受影响
8.openEuler-22.03-LTS-Next:不受影响
9.openEuler-24.03-LTS:不受影响
10.openEuler-24.03-LTS-Next:不受影响

修复是否涉及abi变化(是/否)：
1.openEuler-20.03-LTS-SP1(4.19.90):否
2.openEuler-20.03-LTS-SP4:否
3.openEuler-22.03-LTS:否
4.openEuler-22.03-LTS-SP1:否
5.openEuler-22.03-LTS-SP2:否
6.openEuler-22.03-LTS-SP3:否
7.master(6.1.0):否
8.openEuler-22.03-LTS-Next:否
9.openEuler-24.03-LTS:否
10.openEuler-24.03-LTS-Next:否

===========================================================

@ 经过 cve-manager 解析, 已分析的内容如下表所示:

请确认分析内容的准确性, 确认无误后, 您可以进行后续步骤, 否则您可以继续分析.

CVE-2024-26607

影响性分析说明：
In the Linux kernel, the following vulnerability has been resolved:

drm/bridge: sii902x: Fix probing race issue

A null pointer dereference crash has been observed rarely on TI
platforms using sii9022 bridge:

[ 53.271356] sii902x_get_edid+0x34/0x70 [sii902x]
[ 53.276066] sii902x_bridge_get_edid+0x14/0x20 [sii902x]
[ 53.281381] drm_bridge_get_edid+0x20/0x34 [drm]
[ 53.286305] drm_bridge_connector_get_modes+0x8c/0xcc [drm_kms_helper]
[ 53.292955] drm_helper_probe_single_connector_modes+0x190/0x538 [drm_kms_helper]
[ 53.300510] drm_client_modeset_probe+0x1f0/0xbd4 [drm]
[ 53.305958] __drm_fb_helper_initial_config_and_unlock+0x50/0x510 [drm_kms_helper]
[ 53.313611] drm_fb_helper_initial_config+0x48/0x58 [drm_kms_helper]
[ 53.320039] drm_fbdev_dma_client_hotplug+0x84/0xd4 [drm_dma_helper]
[ 53.326401] drm_client_register+0x5c/0xa0 [drm]
[ 53.331216] drm_fbdev_dma_setup+0xc8/0x13c [drm_dma_helper]
[ 53.336881] tidss_probe+0x128/0x264 [tidss]
[ 53.341174] platform_probe+0x68/0xc4
[ 53.344841] really_probe+0x188/0x3c4
[ 53.348501] __driver_probe_device+0x7c/0x16c
[ 53.352854] driver_probe_device+0x3c/0x10c
[ 53.357033] __device_attach_driver+0xbc/0x158
[ 53.361472] bus_for_each_drv+0x88/0xe8
[ 53.365303] __device_attach+0xa0/0x1b4
[ 53.369135] device_initial_probe+0x14/0x20
[ 53.373314] bus_probe_device+0xb0/0xb4
[ 53.377145] deferred_probe_work_func+0xcc/0x124
[ 53.381757] process_one_work+0x1f0/0x518
[ 53.385770] worker_thread+0x1e8/0x3dc
[ 53.389519] kthread+0x11c/0x120
[ 53.392750] ret_from_fork+0x10/0x20

The issue here is as follows:

• tidss probes, but is deferred as sii902x is still missing.
• sii902x starts probing and enters sii902x_init().
• sii902x calls drm_bridge_add(). Now the sii902x bridge is ready from
  DRM's perspective.
• sii902x calls sii902x_audio_codec_init() and
  platform_device_register_data()
• The registration of the audio platform device causes probing of the
  deferred devices.
• tidss probes, which eventually causes sii902x_bridge_get_edid() to be
  called.
• sii902x_bridge_get_edid() tries to use the i2c to read the edid.
  However, the sii902x driver has not set up the i2c part yet, leading
  to the crash.

Fix this by moving the drm_bridge_add() to the end of the
sii902x_init(), which is also at the very end of sii902x_probe().

openEuler评分:(评分和向量)
4.7
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

受影响版本排查(受影响/不受影响):
1.openEuler-20.03-LTS-SP1:不受影响
2.openEuler-20.03-LTS-SP4:不受影响
3.openEuler-22.03-LTS:受影响
4.openEuler-22.03-LTS-SP1:受影响
5.openEuler-22.03-LTS-SP2:受影响
6.openEuler-22.03-LTS-SP3:受影响
7.master(6.1.0):不受影响
8.openEuler-22.03-LTS-Next:不受影响
9.openEuler-24.03-LTS:不受影响
10.openEuler-24.03-LTS-Next:不受影响

修复是否涉及abi变化(是/否)：
1.openEuler-20.03-LTS-SP1(4.19.90):否
2.openEuler-20.03-LTS-SP4:否
3.openEuler-22.03-LTS:否
4.openEuler-22.03-LTS-SP1:否
5.openEuler-22.03-LTS-SP2:否
6.openEuler-22.03-LTS-SP3:否
7.master(6.1.0):否
8.openEuler-22.03-LTS-Next:否
9.openEuler-24.03-LTS:否
10.openEuler-24.03-LTS-Next:否

===========================================================