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CVE-2024-26855— net: ice: Fix potential NULL pointer dereference in ice_bridge_setlink()

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，该漏洞源于空指针取消引用。

AI Predicted 4.4 Difficulty: Moderate EPSS 0.25% · P15

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation

Affected Version Matrix 16

VendorProduct Version RangeStatus
Linux Linux b1edc14a3fbfe0154a2aecb8bb9775c3012cb6e2< d9fefc51133107e59d192d773be86c1150cfeebb affected
b1edc14a3fbfe0154a2aecb8bb9775c3012cb6e2< 37fe99016b12d32100ce670216816dba6c48b309 affected
b1edc14a3fbfe0154a2aecb8bb9775c3012cb6e2< 8d95465d9a424200485792858c5b3be54658ce19 affected
b1edc14a3fbfe0154a2aecb8bb9775c3012cb6e2< afdd29726a6de4ba27cd15590661424c888dc596 affected
b1edc14a3fbfe0154a2aecb8bb9775c3012cb6e2< 1a770927dc1d642b22417c3e668c871689fc58b3 affected
b1edc14a3fbfe0154a2aecb8bb9775c3012cb6e2< 0e296067ae0d74a10b4933601f9aa9f0ec8f157f affected
b1edc14a3fbfe0154a2aecb8bb9775c3012cb6e2< 06e456a05d669ca30b224b8ed962421770c1496c affected
4.20 affected
… +8 more rows
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I. Basic Information for CVE-2024-26855

Vulnerability Information
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Vulnerability Title
net: ice: Fix potential NULL pointer dereference in ice_bridge_setlink()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: net: ice: Fix potential NULL pointer dereference in ice_bridge_setlink() The function ice_bridge_setlink() may encounter a NULL pointer dereference if nlmsg_find_attr() returns NULL and br_spec is dereferenced subsequently in nla_for_each_nested(). To address this issue, add a check to ensure that br_spec is not NULL before proceeding with the nested attribute iteration.
Source: CVE Program / CVE List V5
CVSS Information
N/A
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，该漏洞源于空指针取消引用。
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

Vendor Product Affected Versions CPE Subscribe
Linux Linux b1edc14a3fbfe0154a2aecb8bb9775c3012cb6e2 ~ d9fefc51133107e59d192d773be86c1150cfeebb -
Linux Linux 4.20 -

II. Public POCs for CVE-2024-26855

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III. Intelligence Information for CVE-2024-26855

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Mailing List Discussions for CVE-2024-26855 (1)

Other References for CVE-2024-26855 (7)

Same Patch Batch · Linux · 2024-04-17 · 100 CVEs total

CVE-2024-26877 9.8 CRITICAL crypto: xilinx - call finalize with bh disabled
CVE-2024-26853 9.8 CRITICAL igc: avoid returning frame twice in XDP_REDIRECT
CVE-2024-26828 9.4 CRITICAL cifs: fix underflow in parse_server_interfaces()
CVE-2024-26856 8.8 HIGH net: sparx5: Fix use after free inside sparx5_del_mact_entry
CVE-2024-26822 8.7 HIGH smb: client: set correct id, uid and cruid for multiuser automounts
CVE-2024-26830 8.4 HIGH i40e: Do not allow untrusted VF to remove administratively set MAC
CVE-2024-26823 7.8 HIGH irqchip/gic-v3-its: Restore quirk probing for ACPI-based systems
CVE-2024-26898 7.8 HIGH aoe: fix the potential use-after-free problem in aoecmd_cfg_pkts
CVE-2024-26852 7.8 HIGH net/ipv6: avoid possible UAF in ip6_route_mpath_notify()
CVE-2024-26895 7.8 HIGH wifi: wilc1000: prevent use-after-free on vif when cleaning up all interfaces
CVE-2024-26890 7.8 HIGH Bluetooth: btrtl: fix out of bounds memory access
CVE-2024-26864 7.8 HIGH tcp: Fix refcnt handling in __inet_hash_connect().
CVE-2024-26865 7.8 HIGH rds: tcp: Fix use-after-free of net in reqsk_timer_handler().
CVE-2024-26869 7.8 HIGH f2fs: fix to truncate meta inode pages forcely
CVE-2024-26870 7.8 HIGH NFSv4.2: fix nfs4_listxattr kernel BUG at mm/usercopy.c:102
CVE-2024-26872 7.8 HIGH RDMA/srpt: Do not register event handler until srpt device is fully setup
CVE-2024-26885 7.8 HIGH bpf: Fix DEVMAP_HASH overflow check on 32-bit arches
CVE-2024-26884 7.8 HIGH bpf: Fix hashtab overflow check on 32-bit arches
CVE-2024-26883 7.8 HIGH bpf: Fix stackmap overflow check on 32-bit arches
CVE-2024-26880 7.8 HIGH dm: call the resume method on internal suspend

Showing top 20 of 100 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-26855

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