CVE-2024-46679
Vulnerability Summary
Timeline
Description
In the Linux kernel, the following vulnerability has been resolved: ethtool: check device is present when getting link settings A sysfs reader can race with a device reset or removal, attempting to read device state when the device is not actually present. eg: [exception RIP: qed_get_current_link+17] #8 [ffffb9e4f2907c48] qede_get_link_ksettings at ffffffffc07a994a [qede] #9 [ffffb9e4f2907cd8] __rh_call_get_link_ksettings at ffffffff992b01a3 #10 [ffffb9e4f2907d38] __ethtool_get_link_ksettings at ffffffff992b04e4 #11 [ffffb9e4f2907d90] duplex_show at ffffffff99260300 #12 [ffffb9e4f2907e38] dev_attr_show at ffffffff9905a01c #13 [ffffb9e4f2907e50] sysfs_kf_seq_show at ffffffff98e0145b #14 [ffffb9e4f2907e68] seq_read at ffffffff98d902e3 #15 [ffffb9e4f2907ec8] vfs_read at ffffffff98d657d1 #16 [ffffb9e4f2907f00] ksys_read at ffffffff98d65c3f #17 [ffffb9e4f2907f38] do_syscall_64 at ffffffff98a052fb crash> struct net_device.state ffff9a9d21336000 state = 5, state 5 is __LINK_STATE_START (0b1) and __LINK_STATE_NOCARRIER (0b100). The device is not present, note lack of __LINK_STATE_PRESENT (0b10). This is the same sort of panic as observed in commit 4224cfd7fb65 ("net-sysfs: add check for netdevice being present to speed_show"). There are many other callers of __ethtool_get_link_ksettings() which don't have a device presence check. Move this check into ethtool to protect all callers.
CVSS Metrics
- v3.1•MEDIUM•Score: 4.7CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS Trends
Current EPSS score: 0.25%• Percentile: 16%
Affected Systems
- debian•linux
< 5.10.226-1 | < 6.1.112-1 | < 6.10.9-1 | < 6.10.9-1
- debian•linux-6.1
< 6.1.119-1~deb11u1
- ubuntu•linux
all | < 5.4.0-200.220 | < 5.15.0-125.135 | < 6.8.0-50.51
- ubuntu•linux-allwinner-5.19
all
- ubuntu•linux-aws
all | < 5.4.0-1135.145 | < 5.15.0-1072.78 | < 6.8.0-1020.22
- ubuntu•linux-aws-5.0
all
- ubuntu•linux-aws-5.11
all
- ubuntu•linux-aws-5.13
all
- ubuntu•linux-aws-5.15
< 5.15.0-1072.78~20.04.1
- ubuntu•linux-aws-5.19
all
- ubuntu•linux-aws-5.3
all
- ubuntu•linux-aws-5.4
< 5.4.0-1135.145~18.04.1
- ubuntu•linux-aws-5.8
all
- ubuntu•linux-aws-6.2
all
- ubuntu•linux-aws-6.5
all
- ubuntu•linux-aws-6.8
< 6.8.0-1020.22~22.04.1
- ubuntu•linux-aws-fips
all | < 5.4.0-1135.145+fips1 | < 5.15.0-1072.78+fips1
- ubuntu•linux-aws-hwe
all
- ubuntu•linux-azure
all | all | < 5.4.0-1140.147 | < 5.15.0-1075.84 | < 6.8.0-1020.23
- ubuntu•linux-azure-4.15
all
- ubuntu•linux-azure-5.11
all
- ubuntu•linux-azure-5.13
all
- ubuntu•linux-azure-5.15
< 5.15.0-1078.87~20.04.1
- ubuntu•linux-azure-5.19
all
- ubuntu•linux-azure-5.3
all
- ubuntu•linux-azure-5.4
< 5.4.0-1140.147~18.04.1
- ubuntu•linux-azure-5.8
all
- ubuntu•linux-azure-6.2
all
- ubuntu•linux-azure-6.5
all
- ubuntu•linux-azure-6.8
< 6.8.0-1020.23~22.04.1
- ubuntu•linux-azure-edge
all
- ubuntu•linux-azure-fde
all | all
- ubuntu•linux-azure-fde-5.19
all
- ubuntu•linux-azure-fde-6.2
all
- ubuntu•linux-azure-fips
all | < 5.4.0-1140.147+fips1 | < 5.15.0-1075.84+fips1
- ubuntu•linux-bluefield
all | < 5.4.0-1095.102 | < 5.15.0-1056.58
- ubuntu•linux-fips
all | < 5.4.0-1109.119 | < 5.15.0-125.135+fips1 | < 6.8.0-78.78+fips1
- ubuntu•linux-gcp
all | all | < 5.4.0-1139.148 | < 5.15.0-1071.79 | < 6.8.0-1019.21
- ubuntu•linux-gcp-4.15
all
- ubuntu•linux-gcp-5.11
all
- ubuntu•linux-gcp-5.13
all
- ubuntu•linux-gcp-5.15
< 5.15.0-1071.79~20.04.1
- ubuntu•linux-gcp-5.19
all
- ubuntu•linux-gcp-5.3
all
- ubuntu•linux-gcp-5.4
< 5.4.0-1139.148~18.04.1
- ubuntu•linux-gcp-5.8
all
- ubuntu•linux-gcp-6.2
all
- ubuntu•linux-gcp-6.5
all
- ubuntu•linux-gcp-6.8
< 6.8.0-1019.21~22.04.1
- ubuntu•linux-gcp-fips
all | < 5.4.0-1139.148+fips1 | < 5.15.0-1071.79+fips1
Showing first 50 affected entries in server-rendered view.
References (32)
- https://git.kernel.org/stable/c/ec7b4f7f644018ac293cb1b02528a40a32917e62
- https://git.kernel.org/stable/c/842a40c7273ba1c1cb30dda50405b328de1d860e
- https://git.kernel.org/stable/c/7a8d98b6d6484d3ad358510366022da080c37cbc
- https://git.kernel.org/stable/c/9bba5955eed160102114d4cc00c3d399be9bdae4
- https://git.kernel.org/stable/c/94ab317024ba373d37340893d1c0358638935fbb
- https://git.kernel.org/stable/c/1d6d9b5b1b95bfeccb84386a51b7e6c510ec13b2
- https://git.kernel.org/stable/c/a699781c79ecf6cfe67fb00a0331b4088c7c8466
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
- https://lists.debian.org/debian-lts-announce/2024/10/msg00003.html
- https://cert-portal.siemens.com/productcert/html/ssa-265688.html
- https://cert-portal.siemens.com/productcert/html/ssa-355557.html
- https://cert-portal.siemens.com/productcert/html/ssa-613116.html
- https://ubuntu.com/security/CVE-2024-46679
- https://www.cve.org/CVERecord?id=CVE-2024-46679
- https://git.kernel.org/linus/a699781c79ecf6cfe67fb00a0331b4088c7c8466
- https://ubuntu.com/security/notices/USN-7088-1
- https://ubuntu.com/security/notices/USN-7088-2
- https://ubuntu.com/security/notices/USN-7088-3
- https://ubuntu.com/security/notices/USN-7088-4
- https://ubuntu.com/security/notices/USN-7100-1
- https://ubuntu.com/security/notices/USN-7100-2
- https://ubuntu.com/security/notices/USN-7088-5
- https://ubuntu.com/security/notices/USN-7119-1
- https://ubuntu.com/security/notices/USN-7123-1
- https://ubuntu.com/security/notices/USN-7144-1
- https://ubuntu.com/security/notices/USN-7154-1
- https://ubuntu.com/security/notices/USN-7155-1
- https://ubuntu.com/security/notices/USN-7156-1
- https://ubuntu.com/security/notices/USN-7154-2
- https://ubuntu.com/security/notices/USN-7194-1
- https://ubuntu.com/security/notices/USN-7196-1
- https://security-tracker.debian.org/tracker/CVE-2024-46679