Описание
In the Linux kernel, the following vulnerability has been resolved:
net-sysfs: add check for netdevice being present to speed_show
When bringing down the netdevice or system shutdown, a panic can be triggered while accessing the sysfs path because the device is already removed.
In the Linux kernel, the following vulnerability has been resolved:
net-sysfs: add check for netdevice being present to speed_show
When bringing down the netdevice or system shutdown, a panic can be triggered while accessing the sysfs path because the device is already removed.
To prevent this scenario, we also make sure that the netdevice is present.
Ссылки
- https://nvd.nist.gov/vuln/detail/CVE-2022-48850
- https://git.kernel.org/stable/c/081369ad088a76429984483b8a5f7e967a125aad
- https://git.kernel.org/stable/c/3a79f380b3e10edf6caa9aac90163a5d7a282204
- https://git.kernel.org/stable/c/4224cfd7fb6523f7a9d1c8bb91bb5df1e38eb624
- https://git.kernel.org/stable/c/75fc8363227a999e8f3d17e2eb28dce5600dcd3f
- https://git.kernel.org/stable/c/8879b5313e9fa5e0c6d6812a0d25d83aed0110e2
- https://git.kernel.org/stable/c/8d5e69d8fbf3a35ab4fbe56b8f092802b43f3ef6
- https://git.kernel.org/stable/c/a7b9ab04c5932dee7ec95e0abc58b0df350c0dd2
- https://git.kernel.org/stable/c/d15c9f6e3335002fea1c33bc8f71a705fa96976c
Связанные уязвимости
In the Linux kernel, the following vulnerability has been resolved: net-sysfs: add check for netdevice being present to speed_show When bringing down the netdevice or system shutdown, a panic can be triggered while accessing the sysfs path because the device is already removed. [ 755.549084] mlx5_core 0000:12:00.1: Shutdown was called [ 756.404455] mlx5_core 0000:12:00.0: Shutdown was called ... [ 757.937260] BUG: unable to handle kernel NULL pointer dereference at (null) [ 758.031397] IP: [<ffffffff8ee11acb>] dma_pool_alloc+0x1ab/0x280 crash> bt ... PID: 12649 TASK: ffff8924108f2100 CPU: 1 COMMAND: "amsd" ... #9 [ffff89240e1a38b0] page_fault at ffffffff8f38c778 [exception RIP: dma_pool_alloc+0x1ab] RIP: ffffffff8ee11acb RSP: ffff89240e1a3968 RFLAGS: 00010046 RAX: 0000000000000246 RBX: ffff89243d874100 RCX: 0000000000001000 RDX: 0000000000000000 RSI: 0000000000000246 RDI: ffff89243d874090 RBP: ffff89240e1a39c0 R8: 000000000001f080 R9: ffff8905ffc03c00 R10: ffff...
In the Linux kernel, the following vulnerability has been resolved: net-sysfs: add check for netdevice being present to speed_show When bringing down the netdevice or system shutdown, a panic can be triggered while accessing the sysfs path because the device is already removed. [ 755.549084] mlx5_core 0000:12:00.1: Shutdown was called [ 756.404455] mlx5_core 0000:12:00.0: Shutdown was called ... [ 757.937260] BUG: unable to handle kernel NULL pointer dereference at (null) [ 758.031397] IP: [<ffffffff8ee11acb>] dma_pool_alloc+0x1ab/0x280 crash> bt ... PID: 12649 TASK: ffff8924108f2100 CPU: 1 COMMAND: "amsd" ... #9 [ffff89240e1a38b0] page_fault at ffffffff8f38c778 [exception RIP: dma_pool_alloc+0x1ab] RIP: ffffffff8ee11acb RSP: ffff89240e1a3968 RFLAGS: 00010046 RAX: 0000000000000246 RBX: ffff89243d874100 RCX: 0000000000001000 RDX: 0000000000000000 RSI: 0000000000000246 RDI: ffff89243d874090 RBP: ffff89240e1a39c0 R8: 000000000001f080 R9: ffff8905ffc03c00 R10...
In the Linux kernel, the following vulnerability has been resolved: net-sysfs: add check for netdevice being present to speed_show When bringing down the netdevice or system shutdown, a panic can be triggered while accessing the sysfs path because the device is already removed. [ 755.549084] mlx5_core 0000:12:00.1: Shutdown was called [ 756.404455] mlx5_core 0000:12:00.0: Shutdown was called ... [ 757.937260] BUG: unable to handle kernel NULL pointer dereference at (null) [ 758.031397] IP: [<ffffffff8ee11acb>] dma_pool_alloc+0x1ab/0x280 crash> bt ... PID: 12649 TASK: ffff8924108f2100 CPU: 1 COMMAND: "amsd" ... #9 [ffff89240e1a38b0] page_fault at ffffffff8f38c778 [exception RIP: dma_pool_alloc+0x1ab] RIP: ffffffff8ee11acb RSP: ffff89240e1a3968 RFLAGS: 00010046 RAX: 0000000000000246 RBX: ffff89243d874100 RCX: 0000000000001000 RDX: 0000000000000000 RSI: 0000000000000246 RDI: ffff89243d8740
In the Linux kernel, the following vulnerability has been resolved: n ...
Уязвимость функции speed_show() в компоненте net-sysfs ядра операционной системы Linux, позволяющая нарушителю вызвать отказ в обслуживании