UBUNTU-CVE-2026-53215
In the Linux kernel, the following vulnerability has been resolved: net: mvpp2: refill RX buffers before XDP or skb use The RX error path returns the current descriptor buffer to the hardware BM pool. That is only valid while the driver still owns the buffer. mvpp2_rx_refill() can fail after the current buffer has been handed to XDP or attached to an skb. In those cases mvpp2_run_xdp() may have recycled, redirected, or queued the page for XDP_TX, and an skb free also retires the data buffer. Returning such a buffer to BM lets hardware DMA into memory that is no longer owned by the RX ring. Refill the BM pool before handing the current buffer to XDP or to the skb. If the allocation fails there, drop the packet and return the still-owned current buffer to BM, preserving the pool depth. Once the refill succeeds, later local drops retire/free the current buffer instead of returning it to BM.
02 / AFFECTED SOFTWARE
Affected packages
11 explicit affected versions
5 explicit affected versions
88 explicit affected versions
50 explicit affected versions
6 explicit affected versions
43 explicit affected versions
16 explicit affected versions
5 explicit affected versions
10 explicit affected versions
8 explicit affected versions
46 explicit affected versions
14 explicit affected versions
4 explicit affected versions
78 explicit affected versions
14 explicit affected versions
11 explicit affected versions
1 explicit affected versions
20 explicit affected versions
6 explicit affected versions
41 explicit affected versions
78 explicit affected versions
12 explicit affected versions
19 explicit affected versions
10 explicit affected versions
6 explicit affected versions
98 explicit affected versions
60 explicit affected versions
24 explicit affected versions
3 explicit affected versions
83 explicit affected versions
84 explicit affected versions
85 explicit affected versions
76 explicit affected versions
10 explicit affected versions
38 explicit affected versions
26 explicit affected versions
90 explicit affected versions
7 explicit affected versions
84 explicit affected versions
41 explicit affected versions
13 explicit affected versions
45 explicit affected versions
35 explicit affected versions
2 explicit affected versions
51 explicit affected versions
48 explicit affected versions
18 explicit affected versions
41 explicit affected versions
3 explicit affected versions
63 explicit affected versions
46 explicit affected versions
13 explicit affected versions
4 explicit affected versions
23 explicit affected versions
53 explicit affected versions
1 explicit affected versions
21 explicit affected versions
8 explicit affected versions
16 explicit affected versions
10 explicit affected versions
20 explicit affected versions
8 explicit affected versions
49 explicit affected versions
8 explicit affected versions
7 explicit affected versions
12 explicit affected versions
11 explicit affected versions
7 explicit affected versions
12 explicit affected versions
14 explicit affected versions
10 explicit affected versions
1 explicit affected versions
7 explicit affected versions
18 explicit affected versions
12 explicit affected versions
10 explicit affected versions
12 explicit affected versions
42 explicit affected versions
10 explicit affected versions
10 explicit affected versions
44 explicit affected versions
16 explicit affected versions
7 explicit affected versions
17 explicit affected versions
28 explicit affected versions
35 explicit affected versions
10 explicit affected versions
37 explicit affected versions
10 explicit affected versions
11 explicit affected versions
13 explicit affected versions
40 explicit affected versions
3 explicit affected versions
10 explicit affected versions
11 explicit affected versions
66 explicit affected versions
26 explicit affected versions
11 explicit affected versions
13 explicit affected versions
35 explicit affected versions
2 explicit affected versions
29 explicit affected versions
13 explicit affected versions
12 explicit affected versions
96 explicit affected versions
42 explicit affected versions
41 explicit affected versions
8 explicit affected versions
90 explicit affected versions
53 explicit affected versions
33 explicit affected versions
23 explicit affected versions
59 explicit affected versions
10 explicit affected versions
21 explicit affected versions
20 explicit affected versions
11 explicit affected versions
5 explicit affected versions
12 explicit affected versions
11 explicit affected versions
7 explicit affected versions
12 explicit affected versions
10 explicit affected versions
16 explicit affected versions
18 explicit affected versions
5 explicit affected versions
75 explicit affected versions
91 explicit affected versions
10 explicit affected versions
26 explicit affected versions
40 explicit affected versions
1 explicit affected versions
67 explicit affected versions
37 explicit affected versions
48 explicit affected versions
11 explicit affected versions
10 explicit affected versions
13 explicit affected versions
47 explicit affected versions
16 explicit affected versions
89 explicit affected versions
51 explicit affected versions
11 explicit affected versions
3 explicit affected versions
7 explicit affected versions
2 explicit affected versions
15 explicit affected versions
51 explicit affected versions
16 explicit affected versions
18 explicit affected versions
43 explicit affected versions
12 explicit affected versions
71 explicit affected versions
78 explicit affected versions
7 explicit affected versions
27 explicit affected versions
3 explicit affected versions
64 explicit affected versions
10 explicit affected versions
44 explicit affected versions
8 explicit affected versions
55 explicit affected versions
3 explicit affected versions
5 explicit affected versions
8 explicit affected versions
7 explicit affected versions
10 explicit affected versions
7 explicit affected versions
47 explicit affected versions
13 explicit affected versions
13 explicit affected versions
7 explicit affected versions
8 explicit affected versions
10 explicit affected versions
12 explicit affected versions
9 explicit affected versions
37 explicit affected versions
44 explicit affected versions
16 explicit affected versions
3 explicit affected versions
13 explicit affected versions
26 explicit affected versions
45 explicit affected versions
37 explicit affected versions
51 explicit affected versions
14 explicit affected versions
38 explicit affected versions
9 explicit affected versions
17 explicit affected versions
11 explicit affected versions
40 explicit affected versions
19 explicit affected versions
14 explicit affected versions
92 explicit affected versions
7 explicit affected versions
7 explicit affected versions
4 explicit affected versions
80 explicit affected versions
10 explicit affected versions
1 explicit affected versions
1 explicit affected versions
1 explicit affected versions
89 explicit affected versions
80 explicit affected versions
79 explicit affected versions
8 explicit affected versions
13 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
In the Linux kernel, the following vulnerability has been resolved: net: mvpp2: refill RX buffers before XDP or skb use The RX error path returns the current descriptor buffer to the hardware BM pool. That is only valid while the driver still owns the buffer. mvpp2_rx_refill() can fail after the current buffer has been handed to XDP or attached to an skb. In those cases mvpp2_run_xdp() may have recycled, redirected, or queued the page for XDP_TX, and an skb free also retires the data buffer. Returning such a buffer to BM lets hardware DMA into memory that is no longer owned by the RX ring. Refill the BM pool before handing the current buffer to XDP or to the skb. If the allocation fails there, drop the packet and return the still-owned current buffer to BM, preserving the pool depth. Once the refill succeeds, later local drops retire/free the current buffer instead of returning it to BM.
05 / REFERENCES
Further evidence
- https://git.kernel.org/linus/5e8e2a9624df72fca7c736b2966b2cbf6c9c3ff6
- https://git.kernel.org/stable/c/02e1b5c4d3b4c658b72c145427cded1bba613fc1
- https://git.kernel.org/stable/c/580f92f27cb8724bcc4be98ee89890eab524a2ae
- https://git.kernel.org/stable/c/5e8e2a9624df72fca7c736b2966b2cbf6c9c3ff6
- https://git.kernel.org/stable/c/8a2126c5afe89f8ceeb60a3afb9f075b736194cd
- https://git.kernel.org/stable/c/a03cdcedb2cbcc42551dc3e4746929e93c5352d5
- https://git.kernel.org/stable/c/a88b3293b556f4d8fba11db9a8061a6b0d3b69e6
- https://git.kernel.org/stable/c/d0c8c4fbd22d260fe28530260656c5fb3c20ce84
- https://ubuntu.com/security/CVE-2026-53215
- https://ubuntu.com/security/notices/USN-8629-1
- https://ubuntu.com/security/notices/USN-8629-2
- https://ubuntu.com/security/notices/USN-8629-3
- https://ubuntu.com/security/notices/USN-8630-1
- https://ubuntu.com/security/notices/USN-8630-2
- https://ubuntu.com/security/notices/USN-8630-3
- https://ubuntu.com/security/notices/USN-8631-1
- https://ubuntu.com/security/notices/USN-8631-2
- https://ubuntu.com/security/notices/USN-8631-3
- https://ubuntu.com/security/notices/USN-8631-4
- https://ubuntu.com/security/notices/USN-8637-1
- https://www.cve.org/CVERecord?id=CVE-2026-53215