| { |
| "containers": { |
| "cna": { |
| "providerMetadata": { |
| "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038" |
| }, |
| "descriptions": [ |
| { |
| "lang": "en", |
| "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nppp: fix ppp_async_encode() illegal access\n\nsyzbot reported an issue in ppp_async_encode() [1]\n\nIn this case, pppoe_sendmsg() is called with a zero size.\nThen ppp_async_encode() is called with an empty skb.\n\nBUG: KMSAN: uninit-value in ppp_async_encode drivers/net/ppp/ppp_async.c:545 [inline]\n BUG: KMSAN: uninit-value in ppp_async_push+0xb4f/0x2660 drivers/net/ppp/ppp_async.c:675\n ppp_async_encode drivers/net/ppp/ppp_async.c:545 [inline]\n ppp_async_push+0xb4f/0x2660 drivers/net/ppp/ppp_async.c:675\n ppp_async_send+0x130/0x1b0 drivers/net/ppp/ppp_async.c:634\n ppp_channel_bridge_input drivers/net/ppp/ppp_generic.c:2280 [inline]\n ppp_input+0x1f1/0xe60 drivers/net/ppp/ppp_generic.c:2304\n pppoe_rcv_core+0x1d3/0x720 drivers/net/ppp/pppoe.c:379\n sk_backlog_rcv+0x13b/0x420 include/net/sock.h:1113\n __release_sock+0x1da/0x330 net/core/sock.c:3072\n release_sock+0x6b/0x250 net/core/sock.c:3626\n pppoe_sendmsg+0x2b8/0xb90 drivers/net/ppp/pppoe.c:903\n sock_sendmsg_nosec net/socket.c:729 [inline]\n __sock_sendmsg+0x30f/0x380 net/socket.c:744\n ____sys_sendmsg+0x903/0xb60 net/socket.c:2602\n ___sys_sendmsg+0x28d/0x3c0 net/socket.c:2656\n __sys_sendmmsg+0x3c1/0x960 net/socket.c:2742\n __do_sys_sendmmsg net/socket.c:2771 [inline]\n __se_sys_sendmmsg net/socket.c:2768 [inline]\n __x64_sys_sendmmsg+0xbc/0x120 net/socket.c:2768\n x64_sys_call+0xb6e/0x3ba0 arch/x86/include/generated/asm/syscalls_64.h:308\n do_syscall_x64 arch/x86/entry/common.c:52 [inline]\n do_syscall_64+0xcd/0x1e0 arch/x86/entry/common.c:83\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\n\nUninit was created at:\n slab_post_alloc_hook mm/slub.c:4092 [inline]\n slab_alloc_node mm/slub.c:4135 [inline]\n kmem_cache_alloc_node_noprof+0x6bf/0xb80 mm/slub.c:4187\n kmalloc_reserve+0x13d/0x4a0 net/core/skbuff.c:587\n __alloc_skb+0x363/0x7b0 net/core/skbuff.c:678\n alloc_skb include/linux/skbuff.h:1322 [inline]\n sock_wmalloc+0xfe/0x1a0 net/core/sock.c:2732\n pppoe_sendmsg+0x3a7/0xb90 drivers/net/ppp/pppoe.c:867\n sock_sendmsg_nosec net/socket.c:729 [inline]\n __sock_sendmsg+0x30f/0x380 net/socket.c:744\n ____sys_sendmsg+0x903/0xb60 net/socket.c:2602\n ___sys_sendmsg+0x28d/0x3c0 net/socket.c:2656\n __sys_sendmmsg+0x3c1/0x960 net/socket.c:2742\n __do_sys_sendmmsg net/socket.c:2771 [inline]\n __se_sys_sendmmsg net/socket.c:2768 [inline]\n __x64_sys_sendmmsg+0xbc/0x120 net/socket.c:2768\n x64_sys_call+0xb6e/0x3ba0 arch/x86/include/generated/asm/syscalls_64.h:308\n do_syscall_x64 arch/x86/entry/common.c:52 [inline]\n do_syscall_64+0xcd/0x1e0 arch/x86/entry/common.c:83\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\n\nCPU: 1 UID: 0 PID: 5411 Comm: syz.1.14 Not tainted 6.12.0-rc1-syzkaller-00165-g360c1f1f24c6 #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024" |
| } |
| ], |
| "affected": [ |
| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "unaffected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "drivers/net/ppp/ppp_async.c" |
| ], |
| "versions": [ |
| { |
| "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", |
| "lessThan": "4151ec65abd755133ebec687218fadd2d2631167", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", |
| "lessThan": "8dfe93901b410ae41264087427f3b9f389388f83", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", |
| "lessThan": "30d91a478d58cbae3dbaa8224d17d0d839f0d71b", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", |
| "lessThan": "fadf8fdb3110d3138e05c3765f645535434f8d76", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", |
| "lessThan": "ce249a4c68d0ce27a8c5d853338d502e2711a314", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", |
| "lessThan": "8fe992ff3df493d1949922ca234419f3ede08dff", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", |
| "lessThan": "c007a14797240607038bd3464501109f408940e2", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", |
| "lessThan": "40dddd4b8bd08a69471efd96107a4e1c73fabefc", |
| "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/ppp/ppp_async.c" |
| ], |
| "versions": [ |
| { |
| "version": "2.6.12", |
| "status": "affected" |
| }, |
| { |
| "version": "0", |
| "lessThan": "2.6.12", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "4.19.323", |
| "lessThanOrEqual": "4.19.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.4.285", |
| "lessThanOrEqual": "5.4.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.10.227", |
| "lessThanOrEqual": "5.10.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.15.168", |
| "lessThanOrEqual": "5.15.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.1.113", |
| "lessThanOrEqual": "6.1.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.6.57", |
| "lessThanOrEqual": "6.6.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.11.4", |
| "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": "2.6.12", |
| "versionEndExcluding": "4.19.323" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "2.6.12", |
| "versionEndExcluding": "5.4.285" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "2.6.12", |
| "versionEndExcluding": "5.10.227" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "2.6.12", |
| "versionEndExcluding": "5.15.168" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "2.6.12", |
| "versionEndExcluding": "6.1.113" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "2.6.12", |
| "versionEndExcluding": "6.6.57" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "2.6.12", |
| "versionEndExcluding": "6.11.4" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "2.6.12", |
| "versionEndExcluding": "6.12" |
| } |
| ] |
| } |
| ] |
| } |
| ], |
| "references": [ |
| { |
| "url": "https://git.kernel.org/stable/c/4151ec65abd755133ebec687218fadd2d2631167" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/8dfe93901b410ae41264087427f3b9f389388f83" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/30d91a478d58cbae3dbaa8224d17d0d839f0d71b" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/fadf8fdb3110d3138e05c3765f645535434f8d76" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/ce249a4c68d0ce27a8c5d853338d502e2711a314" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/8fe992ff3df493d1949922ca234419f3ede08dff" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/c007a14797240607038bd3464501109f408940e2" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/40dddd4b8bd08a69471efd96107a4e1c73fabefc" |
| } |
| ], |
| "title": "ppp: fix ppp_async_encode() illegal access", |
| "x_generator": { |
| "engine": "bippy-1.2.0" |
| } |
| } |
| }, |
| "cveMetadata": { |
| "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038", |
| "cveID": "CVE-2024-50035", |
| "requesterUserId": "gregkh@kernel.org", |
| "serial": "1", |
| "state": "PUBLISHED" |
| }, |
| "dataType": "CVE_RECORD", |
| "dataVersion": "5.0" |
| } |
