CVE-2024-45001
- Source
- https://cve.org/CVERecord?id=CVE-2024-45001
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-45001.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2024-45001
- Downstream
- Related
- Published
- 2024-09-04T19:54:44Z
- Modified
- 2026-08-12T03:30:19Z
- Severity
-
- 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- net: mana: Fix RX buf alloc_size alignment and atomic op panic
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
net: mana: Fix RX buf alloc_size alignment and atomic op panic
The MANA driver's RX buffer alloc_size is passed into napi_build_skb() to create SKB. skb_shinfo(skb) is located at the end of skb, and its alignment is affected by the alloc_size passed into napi_build_skb(). The size needs to be aligned properly for better performance and atomic operations. Otherwise, on ARM64 CPU, for certain MTU settings like 4000, atomic operations may panic on the skb_shinfo(skb)->dataref due to alignment fault.
To fix this bug, add proper alignment to the alloc_size calculation.
Sample panic info: [ 253.298819] Unable to handle kernel paging request at virtual address ffff000129ba5cce [ 253.300900] Mem abort info: [ 253.301760] ESR = 0x0000000096000021 [ 253.302825] EC = 0x25: DABT (current EL), IL = 32 bits [ 253.304268] SET = 0, FnV = 0 [ 253.305172] EA = 0, S1PTW = 0 [ 253.306103] FSC = 0x21: alignment fault Call trace: __skb_clone+0xfc/0x198 skb_clone+0x78/0xe0 raw6_local_deliver+0xfc/0x228 ip6_protocol_deliver_rcu+0x80/0x500 ip6_input_finish+0x48/0x80 ip6_input+0x48/0xc0 ip6_sublist_rcv_finish+0x50/0x78 ip6_sublist_rcv+0x1cc/0x2b8 ipv6_list_rcv+0x100/0x150 __netif_receive_skb_list_core+0x180/0x220 netif_receive_skb_list_internal+0x198/0x2a8 __napi_poll+0x138/0x250 net_rx_action+0x148/0x330 handle_softirqs+0x12c/0x3a0
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/45xxx/CVE-2024-45001.json" }- References
-
- https://git.kernel.org/stable/c/32316f676b4ee87c0404d333d248ccf777f739bc
- https://git.kernel.org/stable/c/65f20b174ec0172f2d6bcfd8533ab9c9e7e347fa
- https://git.kernel.org/stable/c/e6bea6a45f8a401f3d5a430bc81814f0cc8848cf
- https://lists.debian.org/debian-lts-announce/2025/03/msg00028.html
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/45xxx/CVE-2024-45001.json
- https://nvd.nist.gov/vuln/detail/CVE-2024-45001
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git