CVE-2023-53462— hsr: Fix uninit-value access in fill_frame_info()
Quick assessment
Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于fill_frame_info函数中存在未初始化值访问，可能导致内存损坏。
Possible ATT&CK Techniques 1 AI
T1203 · Exploitation for Client ExecutionAffected Version Matrix 12
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 451d8123f89791bb628277c0bdb4cae34a3563e6< 1e90a93ac4845c31724ec5dc96fb51e608435a9d |
affected |
451d8123f89791bb628277c0bdb4cae34a3563e6< 6a4480c5e6ebaf9f797ac300e2a97a02d4e70cfd |
affected | ||
451d8123f89791bb628277c0bdb4cae34a3563e6< 61866f7d814e5792bf47410d7d3ff32e49bd292a |
affected | ||
451d8123f89791bb628277c0bdb4cae34a3563e6< ed7a0ba7e840dc5d54cdbd8466be27e6aedce1e5 |
affected | ||
451d8123f89791bb628277c0bdb4cae34a3563e6< 484b4833c604c0adcf19eac1ca14b60b757355b5 |
affected | ||
5.9 |
affected | ||
< 5.9 |
unaffected | ||
5.10.195≤ 5.10.* |
unaffected | ||
| … +4 more rows | |||
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I. Basic Information for CVE-2023-53462
Vulnerability Information
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Vulnerability Title
hsr: Fix uninit-value access in fill_frame_info()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved:
hsr: Fix uninit-value access in fill_frame_info()
Syzbot reports the following uninit-value access problem.
=====================================================
BUG: KMSAN: uninit-value in fill_frame_info net/hsr/hsr_forward.c:601 [inline]
BUG: KMSAN: uninit-value in hsr_forward_skb+0x9bd/0x30f0 net/hsr/hsr_forward.c:616
fill_frame_info net/hsr/hsr_forward.c:601 [inline]
hsr_forward_skb+0x9bd/0x30f0 net/hsr/hsr_forward.c:616
hsr_dev_xmit+0x192/0x330 net/hsr/hsr_device.c:223
__netdev_start_xmit include/linux/netdevice.h:4889 [inline]
netdev_start_xmit include/linux/netdevice.h:4903 [inline]
xmit_one net/core/dev.c:3544 [inline]
dev_hard_start_xmit+0x247/0xa10 net/core/dev.c:3560
__dev_queue_xmit+0x34d0/0x52a0 net/core/dev.c:4340
dev_queue_xmit include/linux/netdevice.h:3082 [inline]
packet_xmit+0x9c/0x6b0 net/packet/af_packet.c:276
packet_snd net/packet/af_packet.c:3087 [inline]
packet_sendmsg+0x8b1d/0x9f30 net/packet/af_packet.c:3119
sock_sendmsg_nosec net/socket.c:730 [inline]
sock_sendmsg net/socket.c:753 [inline]
__sys_sendto+0x781/0xa30 net/socket.c:2176
__do_sys_sendto net/socket.c:2188 [inline]
__se_sys_sendto net/socket.c:2184 [inline]
__ia32_sys_sendto+0x11f/0x1c0 net/socket.c:2184
do_syscall_32_irqs_on arch/x86/entry/common.c:112 [inline]
__do_fast_syscall_32+0xa2/0x100 arch/x86/entry/common.c:178
do_fast_syscall_32+0x37/0x80 arch/x86/entry/common.c:203
do_SYSENTER_32+0x1f/0x30 arch/x86/entry/common.c:246
entry_SYSENTER_compat_after_hwframe+0x70/0x82
Uninit was created at:
slab_post_alloc_hook+0x12f/0xb70 mm/slab.h:767
slab_alloc_node mm/slub.c:3478 [inline]
kmem_cache_alloc_node+0x577/0xa80 mm/slub.c:3523
kmalloc_reserve+0x148/0x470 net/core/skbuff.c:559
__alloc_skb+0x318/0x740 net/core/skbuff.c:644
alloc_skb include/linux/skbuff.h:1286 [inline]
alloc_skb_with_frags+0xc8/0xbd0 net/core/skbuff.c:6299
sock_alloc_send_pskb+0xa80/0xbf0 net/core/sock.c:2794
packet_alloc_skb net/packet/af_packet.c:2936 [inline]
packet_snd net/packet/af_packet.c:3030 [inline]
packet_sendmsg+0x70e8/0x9f30 net/packet/af_packet.c:3119
sock_sendmsg_nosec net/socket.c:730 [inline]
sock_sendmsg net/socket.c:753 [inline]
__sys_sendto+0x781/0xa30 net/socket.c:2176
__do_sys_sendto net/socket.c:2188 [inline]
__se_sys_sendto net/socket.c:2184 [inline]
__ia32_sys_sendto+0x11f/0x1c0 net/socket.c:2184
do_syscall_32_irqs_on arch/x86/entry/common.c:112 [inline]
__do_fast_syscall_32+0xa2/0x100 arch/x86/entry/common.c:178
do_fast_syscall_32+0x37/0x80 arch/x86/entry/common.c:203
do_SYSENTER_32+0x1f/0x30 arch/x86/entry/common.c:246
entry_SYSENTER_compat_after_hwframe+0x70/0x82
It is because VLAN not yet supported in hsr driver. Return error
when protocol is ETH_P_8021Q in fill_frame_info() now to fix it.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于fill_frame_info函数中存在未初始化值访问，可能导致内存损坏。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2023-53462
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · Linux · 2025-10-01 · 169 CVEs total
| CVE-2023-53517 | 9.8 CRITICAL | tipc: do not update mtu if msg_max is too small in mtu negotiation |
| CVE-2023-53454 | 8.8 HIGH | HID: multitouch: Correct devm device reference for hidinput input_dev name |
| CVE-2025-39918 | 8.8 HIGH | wifi: mt76: fix linked list corruption |
| CVE-2025-39919 | 8.8 HIGH | wifi: mt76: mt7996: add missing check for rx wcid entries |
| CVE-2022-50442 | 8.4 HIGH | fs/ntfs3: Validate buffer length while parsing index |
| CVE-2023-53493 | 8.4 HIGH | accel/qaic: tighten bounds checking in decode_message() |
| CVE-2022-50421 | 7.8 HIGH | rpmsg: char: Avoid double destroy of default endpoint |
| CVE-2023-53484 | 7.8 HIGH | lib: cpu_rmap: Avoid use after free on rmap->obj array entries |
| CVE-2022-50440 | 7.8 HIGH | drm/vmwgfx: Validate the box size for the snooped cursor |
| CVE-2022-50454 | 7.8 HIGH | drm/nouveau: fix a use-after-free in nouveau_gem_prime_import_sg_table() |
| CVE-2025-39924 | 7.8 HIGH | erofs: fix invalid algorithm for encoded extents |
| CVE-2023-53510 | 7.8 HIGH | scsi: ufs: core: Fix handling of lrbp->cmd |
| CVE-2023-53465 | 7.8 HIGH | soundwire: qcom: fix storing port config out-of-bounds |
| CVE-2025-39927 | 7.8 HIGH | ceph: fix race condition validating r_parent before applying state |
| CVE-2023-53506 | 7.8 HIGH | udf: Do not bother merging very long extents |
| CVE-2022-50437 | 7.8 HIGH | drm/msm/hdmi: fix memory corruption with too many bridges |
| CVE-2023-53495 | 7.8 HIGH | net: ethernet: mvpp2_main: fix possible OOB write in mvpp2_ethtool_get_rxnfc() |
| CVE-2023-53494 | 7.8 HIGH | crypto: xts - Handle EBUSY correctly |
| CVE-2022-50432 | 7.8 HIGH | kernfs: fix use-after-free in __kernfs_remove |
| CVE-2023-53492 | 7.8 HIGH | netfilter: nf_tables: do not ignore genmask when looking up chain by id |
Showing top 20 of 169 CVEs. View all on vendor page → →
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Same vendor: Linux
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V. Comments for CVE-2023-53462
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