{"id":"CVE-2024-39487","summary":"bonding: Fix out-of-bounds read in bond_option_arp_ip_targets_set()","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nbonding: Fix out-of-bounds read in bond_option_arp_ip_targets_set()\n\nIn function bond_option_arp_ip_targets_set(), if newval-\u003estring is an\nempty string, newval-\u003estring+1 will point to the byte after the\nstring, causing an out-of-bound read.\n\nBUG: KASAN: slab-out-of-bounds in strlen+0x7d/0xa0 lib/string.c:418\nRead of size 1 at addr ffff8881119c4781 by task syz-executor665/8107\nCPU: 1 PID: 8107 Comm: syz-executor665 Not tainted 6.7.0-rc7 #1\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.15.0-1 04/01/2014\nCall Trace:\n \u003cTASK\u003e\n __dump_stack lib/dump_stack.c:88 [inline]\n dump_stack_lvl+0xd9/0x150 lib/dump_stack.c:106\n print_address_description mm/kasan/report.c:364 [inline]\n print_report+0xc1/0x5e0 mm/kasan/report.c:475\n kasan_report+0xbe/0xf0 mm/kasan/report.c:588\n strlen+0x7d/0xa0 lib/string.c:418\n __fortify_strlen include/linux/fortify-string.h:210 [inline]\n in4_pton+0xa3/0x3f0 net/core/utils.c:130\n bond_option_arp_ip_targets_set+0xc2/0x910\ndrivers/net/bonding/bond_options.c:1201\n __bond_opt_set+0x2a4/0x1030 drivers/net/bonding/bond_options.c:767\n __bond_opt_set_notify+0x48/0x150 drivers/net/bonding/bond_options.c:792\n bond_opt_tryset_rtnl+0xda/0x160 drivers/net/bonding/bond_options.c:817\n bonding_sysfs_store_option+0xa1/0x120 drivers/net/bonding/bond_sysfs.c:156\n dev_attr_store+0x54/0x80 drivers/base/core.c:2366\n sysfs_kf_write+0x114/0x170 fs/sysfs/file.c:136\n kernfs_fop_write_iter+0x337/0x500 fs/kernfs/file.c:334\n call_write_iter include/linux/fs.h:2020 [inline]\n new_sync_write fs/read_write.c:491 [inline]\n vfs_write+0x96a/0xd80 fs/read_write.c:584\n ksys_write+0x122/0x250 fs/read_write.c:637\n do_syscall_x64 arch/x86/entry/common.c:52 [inline]\n do_syscall_64+0x40/0x110 arch/x86/entry/common.c:83\n entry_SYSCALL_64_after_hwframe+0x63/0x6b\n---[ end trace ]---\n\nFix it by adding a check of string length before using it.","modified":"2026-04-02T12:17:00.534838Z","published":"2024-07-09T09:52:07.664Z","related":["ALSA-2024:5363","SUSE-SU-2024:2802-1","SUSE-SU-2024:2892-1","SUSE-SU-2024:2894-1","SUSE-SU-2024:2896-1","SUSE-SU-2024:2901-1","SUSE-SU-2024:2939-1","SUSE-SU-2024:2940-1","SUSE-SU-2024:2947-1","SUSE-SU-2024:2973-1","SUSE-SU-2025:20008-1","SUSE-SU-2025:20028-1"],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/39xxx/CVE-2024-39487.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/6a8a4fd082c439e19fede027e80c79bc4c84bb8e"},{"type":"WEB","url":"https://git.kernel.org/stable/c/6b21346b399fd1336fe59233a17eb5ce73041ee1"},{"type":"WEB","url":"https://git.kernel.org/stable/c/707c85ba3527ad6aa25552033576b0f1ff835d7b"},{"type":"WEB","url":"https://git.kernel.org/stable/c/9f835e48bd4c75fdf6a9cff3f0b806a7abde78da"},{"type":"WEB","url":"https://git.kernel.org/stable/c/b75e33eae8667084bd4a63e67657c6a5a0f8d1e8"},{"type":"WEB","url":"https://git.kernel.org/stable/c/bfd14e5915c2669f292a31d028e75dcd82f1e7e9"},{"type":"WEB","url":"https://git.kernel.org/stable/c/c8eb8ab9a44ff0e73492d0a12a643c449f641a9f"},{"type":"WEB","url":"https://git.kernel.org/stable/c/e271ff53807e8f2c628758290f0e499dbe51cb3d"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/39xxx/CVE-2024-39487.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-39487"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"f9de11a165943a55e0fbda714caf60eaeb276a42"},{"fixed":"6a8a4fd082c439e19fede027e80c79bc4c84bb8e"},{"fixed":"6b21346b399fd1336fe59233a17eb5ce73041ee1"},{"fixed":"707c85ba3527ad6aa25552033576b0f1ff835d7b"},{"fixed":"bfd14e5915c2669f292a31d028e75dcd82f1e7e9"},{"fixed":"c8eb8ab9a44ff0e73492d0a12a643c449f641a9f"},{"fixed":"b75e33eae8667084bd4a63e67657c6a5a0f8d1e8"},{"fixed":"9f835e48bd4c75fdf6a9cff3f0b806a7abde78da"},{"fixed":"e271ff53807e8f2c628758290f0e499dbe51cb3d"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-39487.json"}}],"schema_version":"1.7.5"}