{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2024-50128", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-10-21T19:36:19.955Z", "datePublished": "2024-11-05T17:10:55.044Z", "dateUpdated": "2026-08-05T11:41:54.188Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T11:41:54.188Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: wwan: fix global oob in wwan_rtnl_policy\n\nThe variable wwan_rtnl_link_ops assign a *bigger* maxtype which leads to\na global out-of-bounds read when parsing the netlink attributes. Exactly\nsame bug cause as the oob fixed in commit b33fb5b801c6 (\"net: qualcomm:\nrmnet: fix global oob in rmnet_policy\").\n\n==================================================================\nBUG: KASAN: global-out-of-bounds in validate_nla lib/nlattr.c:388 [inline]\nBUG: KASAN: global-out-of-bounds in __nla_validate_parse+0x19d7/0x29a0 lib/nlattr.c:603\nRead of size 1 at addr ffffffff8b09cb60 by task syz.1.66276/323862\n\nCPU: 0 PID: 323862 Comm: syz.1.66276 Not tainted 6.1.70 #1\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.13.0-1ubuntu1.1 04/01/2014\nCall Trace:\n \n __dump_stack lib/dump_stack.c:88 [inline]\n dump_stack_lvl+0x177/0x231 lib/dump_stack.c:106\n print_address_description mm/kasan/report.c:284 [inline]\n print_report+0x14f/0x750 mm/kasan/report.c:395\n kasan_report+0x139/0x170 mm/kasan/report.c:495\n validate_nla lib/nlattr.c:388 [inline]\n __nla_validate_parse+0x19d7/0x29a0 lib/nlattr.c:603\n __nla_parse+0x3c/0x50 lib/nlattr.c:700\n nla_parse_nested_deprecated include/net/netlink.h:1269 [inline]\n __rtnl_newlink net/core/rtnetlink.c:3514 [inline]\n rtnl_newlink+0x7bc/0x1fd0 net/core/rtnetlink.c:3623\n rtnetlink_rcv_msg+0x794/0xef0 net/core/rtnetlink.c:6122\n netlink_rcv_skb+0x1de/0x420 net/netlink/af_netlink.c:2508\n netlink_unicast_kernel net/netlink/af_netlink.c:1326 [inline]\n netlink_unicast+0x74b/0x8c0 net/netlink/af_netlink.c:1352\n netlink_sendmsg+0x882/0xb90 net/netlink/af_netlink.c:1874\n sock_sendmsg_nosec net/socket.c:716 [inline]\n __sock_sendmsg net/socket.c:728 [inline]\n ____sys_sendmsg+0x5cc/0x8f0 net/socket.c:2499\n ___sys_sendmsg+0x21c/0x290 net/socket.c:2553\n __sys_sendmsg net/socket.c:2582 [inline]\n __do_sys_sendmsg net/socket.c:2591 [inline]\n __se_sys_sendmsg+0x19e/0x270 net/socket.c:2589\n do_syscall_x64 arch/x86/entry/common.c:51 [inline]\n do_syscall_64+0x45/0x90 arch/x86/entry/common.c:81\n entry_SYSCALL_64_after_hwframe+0x63/0xcd\nRIP: 0033:0x7f67b19a24ad\nRSP: 002b:00007f67b17febb8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e\nRAX: ffffffffffffffda RBX: 00007f67b1b45f80 RCX: 00007f67b19a24ad\nRDX: 0000000000000000 RSI: 0000000020005e40 RDI: 0000000000000004\nRBP: 00007f67b1a1e01d R08: 0000000000000000 R09: 0000000000000000\nR10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000\nR13: 00007ffd2513764f R14: 00007ffd251376e0 R15: 00007f67b17fed40\n \n\nThe buggy address belongs to the variable:\n wwan_rtnl_policy+0x20/0x40\n\nThe buggy address belongs to the physical page:\npage:ffffea00002c2700 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0xb09c\nflags: 0xfff00000001000(reserved|node=0|zone=1|lastcpupid=0x7ff)\nraw: 00fff00000001000 ffffea00002c2708 ffffea00002c2708 0000000000000000\nraw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000\npage dumped because: kasan: bad access detected\npage_owner info is not present (never set?)\n\nMemory state around the buggy address:\n ffffffff8b09ca00: 05 f9 f9 f9 05 f9 f9 f9 00 01 f9 f9 00 01 f9 f9\n ffffffff8b09ca80: 00 00 00 05 f9 f9 f9 f9 00 00 03 f9 f9 f9 f9 f9\n>ffffffff8b09cb00: 00 00 00 00 05 f9 f9 f9 00 00 00 00 f9 f9 f9 f9\n ^\n ffffffff8b09cb80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00\n==================================================================\n\nAccording to the comment of `nla_parse_nested_deprecated`, use correct size\n`IFLA_WWAN_MAX` here to fix this issue." } ], "metrics": [ { "cvssV3_1": { "version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH" }, "scenarios": [ { "lang": "en", "value": "AV:L - The vulnerability is reached by `sendmsg()` on a local `AF_NETLINK`/`NETLINK_ROUTE` socket carrying an `RTM_NEWLINK` message; no remote or adjacent-network packet reaches this code.\nAC:L - The attacker fully controls the netlink message and simply emits `IFLA_LINKINFO{IFLA_INFO_KIND=\"wwan\", IFLA_INFO_DATA{attr type 2}}`, deterministically hitting `policy[2]` on every attempt with no race or memory-layout luck involved.\nPR:L - `rtnetlink_rcv_msg` gates `RTM_NEWLINK` on `netlink_net_capable(skb, CAP_NET_ADMIN)`, which checks the capability against the network namespace's owning user namespace, so any unprivileged local user obtains it via `unshare -Urn`.\nUI:N - The attacker triggers the out-of-bounds read entirely from its own process by sending one netlink message; no victim action or cooperating user is needed.\nS:U - The out-of-bounds read and its consequences stay within the kernel's own security authority; no hypervisor, IOMMU, or sandbox boundary is crossed.\nC:H - A full 16-byte `struct nla_policy` beyond the array is read, and its contents are handed back to userspace through `NLMSGERR_ATTR_POLICY`, while the `NLA_REJECT` path dereferences the out-of-bounds `reject_message` pointer and copies the string at that arbitrary kernel address to the caller via `NLMSGERR_ATTR_MSG`.\nI:H - The out-of-bounds entry is consumed as control data: `NLA_VALIDATE_FUNCTION` performs an indirect call through the out-of-bounds `pt->validate` pointer and `NLA_NESTED`/`NLA_NESTED_ARRAY` recurse using the out-of-bounds `pt->nested_policy` pointer, giving a control-flow transfer through memory the policy array never owned.\nA:H - `BUG_ON(pt->type > NLA_TYPE_MAX)` fires whenever the out-of-bounds byte exceeds 21, panicking the kernel from a context that holds `rtnl_lock`, so even a survivable oops permanently deadlocks all network configuration; the wild `reject_message`/`nested_policy` dereferences add further fatal faults." } ] } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/net/wwan/wwan_core.c" ], "versions": [ { "version": "88b710532e53de2466d1033fb1d5125aabf3215a", "lessThan": "c9a0aed51977198df005d0a623090e38e2d77d7b", "status": "affected", "versionType": "git" }, { "version": "88b710532e53de2466d1033fb1d5125aabf3215a", "lessThan": "9683804e36668f6093fb06e202eed2f188ba437e", "status": "affected", "versionType": "git" }, { "version": "88b710532e53de2466d1033fb1d5125aabf3215a", "lessThan": "69076f8435c1c5dae5f814eaf4c361d1f00b22a3", "status": "affected", "versionType": "git" }, { "version": "88b710532e53de2466d1033fb1d5125aabf3215a", "lessThan": "a3ffce63dcc0c208edd4d196e17baed22ebcb643", "status": "affected", "versionType": "git" }, { "version": "88b710532e53de2466d1033fb1d5125aabf3215a", "lessThan": "47dd5447cab8ce30a847a0337d5341ae4c7476a7", "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/wwan/wwan_core.c" ], "versions": [ { "version": "5.14", "status": "affected" }, { "version": "0", "lessThan": "5.14", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.170", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.1.115", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.6.59", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.11.6", "lessThanOrEqual": "6.11.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.12", "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": "5.14", "versionEndExcluding": "5.15.170" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.14", "versionEndExcluding": "6.1.115" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.14", "versionEndExcluding": "6.6.59" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.14", "versionEndExcluding": "6.11.6" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.14", "versionEndExcluding": "6.12" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/c9a0aed51977198df005d0a623090e38e2d77d7b" }, { "url": "https://git.kernel.org/stable/c/9683804e36668f6093fb06e202eed2f188ba437e" }, { "url": "https://git.kernel.org/stable/c/69076f8435c1c5dae5f814eaf4c361d1f00b22a3" }, { "url": "https://git.kernel.org/stable/c/a3ffce63dcc0c208edd4d196e17baed22ebcb643" }, { "url": "https://git.kernel.org/stable/c/47dd5447cab8ce30a847a0337d5341ae4c7476a7" } ], "title": "net: wwan: fix global oob in wwan_rtnl_policy", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "metrics": [ { "cvssV3_1": { "scope": "UNCHANGED", "version": "3.1", "baseScore": 7.1, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH" } }, { "other": { "type": "ssvc", "content": { "id": "CVE-2024-50128", "role": "CISA Coordinator", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "version": "2.0.3", "timestamp": "2025-10-01T20:21:33.678505Z" } } } ], "problemTypes": [ { "descriptions": [ { "lang": "en", "type": "CWE", "cweId": "CWE-125", "description": "CWE-125 Out-of-bounds Read" } ] } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-10-01T20:27:16.057Z" } }, { "title": "CVE Program Container", "references": [ { "url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html" } ], "providerMetadata": { "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2025-11-03T22:25:50.239Z" } } ] } }