CVE-2024-39487bonding: Fix out-of-bounds read in bond_option_arp_ip_targets_set()
Updated under an hour ago ()
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In the Linux kernel, the following vulnerability has been resolved: bonding: Fix out-of-bounds read in bond_option_arp_ip_targets_set() In function bond_option_arp_ip_targets_set(), if newval->string is an empty string, newval->string+1 will point to the byte after the string, causing an out-of-bound read. BUG: KASAN: slab-out-of-bounds in strlen+0x7d/0xa0 lib/string.c:418 Read of size 1 at addr ffff8881119c4781 by task syz-executor665/8107 CPU: 1 PID: 8107 Comm: syz-executor665 Not tainted 6.7.0-rc7 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.15.0-1 04/01/2014 Call Trace: <TASK> __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xd9/0x150 lib/dump_stack.c:106 print_address_description mm/kasan/report.c:364 [inline] print_report+0xc1/0x5e0 mm/kasan/report.c:475 kasan_report+0xbe/0xf0 mm/kasan/report.c:588 strlen+0x7d/0xa0 lib/string.c:418 __fortify_strlen include/linux/fortify-string.h:210 [inline] in4_pton+0xa3/0x3f0 net/core/utils.c:130 bond_option_arp_ip_targets_set+0xc2/0x910 drivers/net/bonding/bond_options.c:1201 __bond_opt_set+0x2a4/0x1030 drivers/net/bonding/bond_options.c:767 __bond_opt_set_notify+0x48/0x150 drivers/net/bonding/bond_options.c:792 bond_opt_tryset_rtnl+0xda/0x160 drivers/net/bonding/bond_options.c:817 bonding_sysfs_store_option+0xa1/0x120 drivers/net/bonding/bond_sysfs.c:156 dev_attr_store+0x54/0x80 drivers/base/core.c:2366 sysfs_kf_write+0x114/0x170 fs/sysfs/file.c:136 kernfs_fop_write_iter+0x337/0x500 fs/kernfs/file.c:334 call_write_iter include/linux/fs.h:2020 [inline] new_sync_write fs/read_write.c:491 [inline] vfs_write+0x96a/0xd80 fs/read_write.c:584 ksys_write+0x122/0x250 fs/read_write.c:637 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0x40/0x110 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x63/0x6b ---[ end trace ]--- Fix it by adding a check of string length before using it.
- CVSS
- 7.1 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Modified
- Record last updated
- Oct 15, 2026
- First seen by InfoSec Signals
- Oct 15, 2026
Affected products
Linux Linux linux:linux (from the name) | from f9de11a165943a55e0fbda714caf60eaeb276a42 before 6a8a4fd082c439e19fede027e80c79bc4c84bb8e; from f9de11a165943a55e0fbda714caf60eaeb276a42 before 6b21346b399fd1336fe59233a17eb5ce73041ee1; from f9de11a165943a55e0fbda714caf60eaeb276a42 before 707c85ba3527ad6aa25552033576b0f1ff835d7b; from f9de11a165943a55e0fbda714caf60eaeb276a42 before bfd14e5915c2669f292a31d028e75dcd82f1e7e9; from f9de11a165943a55e0fbda714caf60eaeb276a42 before c8eb8ab9a44ff0e73492d0a12a643c449f641a9f; from f9de11a165943a55e0fbda714caf60eaeb276a42 before b75e33eae8667084bd4a63e67657c6a5a0f8d1e8; from f9de11a165943a55e0fbda714caf60eaeb276a42 before 9f835e48bd4c75fdf6a9cff3f0b806a7abde78da; from f9de11a165943a55e0fbda714caf60eaeb276a42 before e271ff53807e8f2c628758290f0e499dbe51cb3d | CNA record |
Siemens RUGGEDCOM RST2428P siemens:ruggedcom_rst2428p (from the name) | before V3.1 | CISA ADP |
Siemens SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family siemens:scalance_xc_300_xr_300_xc_400_xr_500wg_xr_500_family (from the name) | all versions not affected | CISA ADP |
Siemens SCALANCE XCM-/XRM-/XCH-/XRH-300 family siemens:scalance_xcm_xrm_xch_xrh_300_family (from the name) | before V3.1 | CISA ADP |
Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP siemens:simatic_s7_1500_cpu_1518_4_pn_dp_mfp (from the name) | from V3.1.0 before V3.1.5 | CISA ADP |
Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP siemens:simatic_s7_1500_cpu_1518f_4_pn_dp_mfp (from the name) | from V3.1.0 before V3.1.5 | CISA ADP |
Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP siemens:siplus_s7_1500_cpu_1518_4_pn_dp_mfp (from the name) | from V3.1.0 before V3.1.5 | CISA ADP |
linux linux_kernel linux:linux_kernel | from 3.13 before 4.19.318; from 4.20 before 5.4.280; from 5.5 before 5.10.222; from 5.11 before 5.15.163; from 5.16 before 6.1.98; from 6.2 before 6.6.39; from 6.7 before 6.9.9; 6.10; and 5 more ranges | NVD |
References
- https://git.kernel.org/stable/c/6a8a4fd082c439e19fede027e80c79bc4c84bb8emailing-list, patch
- https://git.kernel.org/stable/c/6b21346b399fd1336fe59233a17eb5ce73041ee1mailing-list, patch
- https://git.kernel.org/stable/c/707c85ba3527ad6aa25552033576b0f1ff835d7bmailing-list, patch
- https://git.kernel.org/stable/c/bfd14e5915c2669f292a31d028e75dcd82f1e7e9mailing-list, patch
- https://git.kernel.org/stable/c/c8eb8ab9a44ff0e73492d0a12a643c449f641a9fmailing-list, patch
- https://git.kernel.org/stable/c/b75e33eae8667084bd4a63e67657c6a5a0f8d1e8mailing-list, patch
- https://git.kernel.org/stable/c/9f835e48bd4c75fdf6a9cff3f0b806a7abde78damailing-list, patch
- https://git.kernel.org/stable/c/e271ff53807e8f2c628758290f0e499dbe51cb3dmailing-list, patch
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
- https://cert-portal.siemens.com/productcert/html/ssa-355557.html
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html
- https://cert-portal.siemens.com/productcert/html/ssa-613116.html
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.