{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2022-49456", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-02-26T02:08:31.574Z", "datePublished": "2025-02-26T02:13:04.787Z", "dateUpdated": "2025-05-04T08:38:08.212Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-05-04T08:38:08.212Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbonding: fix missed rcu protection\n\nWhen removing the rcu_read_lock in bond_ethtool_get_ts_info() as\ndiscussed [1], I didn't notice it could be called via setsockopt,\nwhich doesn't hold rcu lock, as syzbot pointed:\n\n stack backtrace:\n CPU: 0 PID: 3599 Comm: syz-executor317 Not tainted 5.18.0-rc5-syzkaller-01392-g01f4685797a5 #0\n Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011\n Call Trace:\n <TASK>\n __dump_stack lib/dump_stack.c:88 [inline]\n dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106\n bond_option_active_slave_get_rcu include/net/bonding.h:353 [inline]\n bond_ethtool_get_ts_info+0x32c/0x3a0 drivers/net/bonding/bond_main.c:5595\n __ethtool_get_ts_info+0x173/0x240 net/ethtool/common.c:554\n ethtool_get_phc_vclocks+0x99/0x110 net/ethtool/common.c:568\n sock_timestamping_bind_phc net/core/sock.c:869 [inline]\n sock_set_timestamping+0x3a3/0x7e0 net/core/sock.c:916\n sock_setsockopt+0x543/0x2ec0 net/core/sock.c:1221\n __sys_setsockopt+0x55e/0x6a0 net/socket.c:2223\n __do_sys_setsockopt net/socket.c:2238 [inline]\n __se_sys_setsockopt net/socket.c:2235 [inline]\n __x64_sys_setsockopt+0xba/0x150 net/socket.c:2235\n do_syscall_x64 arch/x86/entry/common.c:50 [inline]\n do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80\n entry_SYSCALL_64_after_hwframe+0x44/0xae\n RIP: 0033:0x7f8902c8eb39\n\nFix it by adding rcu_read_lock and take a ref on the real_dev.\nSince dev_hold() and dev_put() can take NULL these days, we can\nskip checking if real_dev exist.\n\n[1] https://lore.kernel.org/netdev/27565.1642742439@famine/"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/bonding/bond_main.c"], "versions": [{"version": "aa6034678e873db8bd5c5a4b73f8b88c469374d6", "lessThan": "1b66a533c47d29b38af8e05fbb53b609a5ba3a4e", "status": "affected", "versionType": "git"}, {"version": "aa6034678e873db8bd5c5a4b73f8b88c469374d6", "lessThan": "85eed460681da71b359ed906bce4d800081db854", "status": "affected", "versionType": "git"}, {"version": "aa6034678e873db8bd5c5a4b73f8b88c469374d6", "lessThan": "9b80ccda233fa6c59de411bf889cc4d0e028f2c7", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/bonding/bond_main.c"], "versions": [{"version": "5.17", "status": "affected"}, {"version": "0", "lessThan": "5.17", "status": "unaffected", "versionType": "semver"}, {"version": "5.17.14", "lessThanOrEqual": "5.17.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.18.3", "lessThanOrEqual": "5.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.19", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.17", "versionEndExcluding": "5.17.14"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.17", "versionEndExcluding": "5.18.3"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.17", "versionEndExcluding": "5.19"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/1b66a533c47d29b38af8e05fbb53b609a5ba3a4e"}, {"url": "https://git.kernel.org/stable/c/85eed460681da71b359ed906bce4d800081db854"}, {"url": "https://git.kernel.org/stable/c/9b80ccda233fa6c59de411bf889cc4d0e028f2c7"}], "title": "bonding: fix missed rcu protection", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbonding: fix missed rcu protection\n\nWhen removing the rcu_read_lock in bond_ethtool_get_ts_info() as\ndiscussed [1], I didn't notice it could be called via setsockopt,\nwhich doesn't hold rcu lock, as syzbot pointed:\n\n stack backtrace:\n CPU: 0 PID: 3599 Comm: syz-executor317 Not tainted 5.18.0-rc5-syzkaller-01392-g01f4685797a5 #0\n Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011\n Call Trace:\n <TASK>\n __dump_stack lib/dump_stack.c:88 [inline]\n dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106\n bond_option_active_slave_get_rcu include/net/bonding.h:353 [inline]\n bond_ethtool_get_ts_info+0x32c/0x3a0 drivers/net/bonding/bond_main.c:5595\n __ethtool_get_ts_info+0x173/0x240 net/ethtool/common.c:554\n ethtool_get_phc_vclocks+0x99/0x110 net/ethtool/common.c:568\n sock_timestamping_bind_phc net/core/sock.c:869 [inline]\n sock_set_timestamping+0x3a3/0x7e0 net/core/sock.c:916\n sock_setsockopt+0x543/0x2ec0 net/core/sock.c:1221\n __sys_setsockopt+0x55e/0x6a0 net/socket.c:2223\n __do_sys_setsockopt net/socket.c:2238 [inline]\n __se_sys_setsockopt net/socket.c:2235 [inline]\n __x64_sys_setsockopt+0xba/0x150 net/socket.c:2235\n do_syscall_x64 arch/x86/entry/common.c:50 [inline]\n do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80\n entry_SYSCALL_64_after_hwframe+0x44/0xae\n RIP: 0033:0x7f8902c8eb39\n\nFix it by adding rcu_read_lock and take a ref on the real_dev.\nSince dev_hold() and dev_put() can take NULL these days, we can\nskip checking if real_dev exist.\n\n[1] https://lore.kernel.org/netdev/27565.1642742439@famine/"}], "id": "CVE-2022-49456", "lastModified": "2025-02-26T07:01:21.950", "metrics": {}, "published": "2025-02-26T07:01:21.950", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/1b66a533c47d29b38af8e05fbb53b609a5ba3a4e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/85eed460681da71b359ed906bce4d800081db854"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/9b80ccda233fa6c59de411bf889cc4d0e028f2c7"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: bonding: fix missed rcu protection", "id": "2347903", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2347903"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-413", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nbonding: fix missed rcu protection\nWhen removing the rcu_read_lock in bond_ethtool_get_ts_info() as\ndiscussed [1], I didn't notice it could be called via setsockopt,\nwhich doesn't hold rcu lock, as syzbot pointed:\nstack backtrace:\nCPU: 0 PID: 3599 Comm: syz-executor317 Not tainted 5.18.0-rc5-syzkaller-01392-g01f4685797a5 #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011\nCall Trace:\n<TASK>\n__dump_stack lib/dump_stack.c:88 [inline]\ndump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106\nbond_option_active_slave_get_rcu include/net/bonding.h:353 [inline]\nbond_ethtool_get_ts_info+0x32c/0x3a0 drivers/net/bonding/bond_main.c:5595\n__ethtool_get_ts_info+0x173/0x240 net/ethtool/common.c:554\nethtool_get_phc_vclocks+0x99/0x110 net/ethtool/common.c:568\nsock_timestamping_bind_phc net/core/sock.c:869 [inline]\nsock_set_timestamping+0x3a3/0x7e0 net/core/sock.c:916\nsock_setsockopt+0x543/0x2ec0 net/core/sock.c:1221\n__sys_setsockopt+0x55e/0x6a0 net/socket.c:2223\n__do_sys_setsockopt net/socket.c:2238 [inline]\n__se_sys_setsockopt net/socket.c:2235 [inline]\n__x64_sys_setsockopt+0xba/0x150 net/socket.c:2235\ndo_syscall_x64 arch/x86/entry/common.c:50 [inline]\ndo_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80\nentry_SYSCALL_64_after_hwframe+0x44/0xae\nRIP: 0033:0x7f8902c8eb39\nFix it by adding rcu_read_lock and take a ref on the real_dev.\nSince dev_hold() and dev_put() can take NULL these days, we can\nskip checking if real_dev exist.\n[1] https://lore.kernel.org/netdev/27565.1642742439@famine/"], "name": "CVE-2022-49456", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-02-26T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-49456\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-49456\nhttps://lore.kernel.org/linux-cve-announce/2025022600-CVE-2022-49456-2bf4@gregkh/T"], "threat_severity": "Moderate"}