virtio_pci: Fix admin vq cleanup by using correct info pointer
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
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| Linux | Linux | unaffected |
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| Linux | Linux | affected |
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Configuration 1 [-]
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No data.
No data available yet.
| Source | ID | Title |
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Ubuntu USN |
USN-7276-1 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-7277-1 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-7310-1 | Linux kernel vulnerabilities |
No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.203% probability within 30 days)
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cvssV3_1
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cvssV3_1
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ssvc
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| First Time appeared |
Linux
Linux linux Kernel |
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| Weaknesses | CWE-476 | |
| CPEs | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.12:rc1:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.12:rc2:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.12:rc3:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.12:rc4:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.12:rc5:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.12:rc6:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.12:rc7:*:*:*:*:*:* |
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| Vendors & Products |
Linux
Linux linux Kernel |
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threat_severity
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cvssV3_1
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| Description | In the Linux kernel, the following vulnerability has been resolved: virtio_pci: Fix admin vq cleanup by using correct info pointer vp_modern_avq_cleanup() and vp_del_vqs() clean up admin vq resources by virtio_pci_vq_info pointer. The info pointer of admin vq is stored in vp_dev->admin_vq.info instead of vp_dev->vqs[]. Using the info pointer from vp_dev->vqs[] for admin vq causes a kernel NULL pointer dereference bug. In vp_modern_avq_cleanup() and vp_del_vqs(), get the info pointer from vp_dev->admin_vq.info for admin vq to clean up the resources. Also make info ptr as argument of vp_del_vq() to be symmetric with vp_setup_vq(). vp_reset calls vp_modern_avq_cleanup, and causes the Call Trace: ================================================================== BUG: kernel NULL pointer dereference, address:0000000000000000 ... CPU: 49 UID: 0 PID: 4439 Comm: modprobe Not tainted 6.11.0-rc5 #1 RIP: 0010:vp_reset+0x57/0x90 [virtio_pci] Call Trace: <TASK> ... ? vp_reset+0x57/0x90 [virtio_pci] ? vp_reset+0x38/0x90 [virtio_pci] virtio_reset_device+0x1d/0x30 remove_vq_common+0x1c/0x1a0 [virtio_net] virtnet_remove+0xa1/0xc0 [virtio_net] virtio_dev_remove+0x46/0xa0 ... virtio_pci_driver_exit+0x14/0x810 [virtio_pci] ================================================================== | |
| Title | virtio_pci: Fix admin vq cleanup by using correct info pointer | |
| References |
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