| { |
| "containers": { |
| "cna": { |
| "providerMetadata": { |
| "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038" |
| }, |
| "descriptions": [ |
| { |
| "lang": "en", |
| "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsch_cake: do not call cake_destroy() from cake_init()\n\nqdiscs are not supposed to call their own destroy() method\nfrom init(), because core stack already does that.\n\nsyzbot was able to trigger use after free:\n\nDEBUG_LOCKS_WARN_ON(lock->magic != lock)\nWARNING: CPU: 0 PID: 21902 at kernel/locking/mutex.c:586 __mutex_lock_common kernel/locking/mutex.c:586 [inline]\nWARNING: CPU: 0 PID: 21902 at kernel/locking/mutex.c:586 __mutex_lock+0x9ec/0x12f0 kernel/locking/mutex.c:740\nModules linked in:\nCPU: 0 PID: 21902 Comm: syz-executor189 Not tainted 5.16.0-rc4-syzkaller #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011\nRIP: 0010:__mutex_lock_common kernel/locking/mutex.c:586 [inline]\nRIP: 0010:__mutex_lock+0x9ec/0x12f0 kernel/locking/mutex.c:740\nCode: 08 84 d2 0f 85 19 08 00 00 8b 05 97 38 4b 04 85 c0 0f 85 27 f7 ff ff 48 c7 c6 20 00 ac 89 48 c7 c7 a0 fe ab 89 e8 bf 76 ba ff <0f> 0b e9 0d f7 ff ff 48 8b 44 24 40 48 8d b8 c8 08 00 00 48 89 f8\nRSP: 0018:ffffc9000627f290 EFLAGS: 00010282\nRAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000\nRDX: ffff88802315d700 RSI: ffffffff815f1db8 RDI: fffff52000c4fe44\nRBP: ffff88818f28e000 R08: 0000000000000000 R09: 0000000000000000\nR10: ffffffff815ebb5e R11: 0000000000000000 R12: 0000000000000000\nR13: dffffc0000000000 R14: ffffc9000627f458 R15: 0000000093c30000\nFS: 0000555556abc400(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 00007fda689c3303 CR3: 000000001cfbb000 CR4: 0000000000350ef0\nCall Trace:\n <TASK>\n tcf_chain0_head_change_cb_del+0x2e/0x3d0 net/sched/cls_api.c:810\n tcf_block_put_ext net/sched/cls_api.c:1381 [inline]\n tcf_block_put_ext net/sched/cls_api.c:1376 [inline]\n tcf_block_put+0xbc/0x130 net/sched/cls_api.c:1394\n cake_destroy+0x3f/0x80 net/sched/sch_cake.c:2695\n qdisc_create.constprop.0+0x9da/0x10f0 net/sched/sch_api.c:1293\n tc_modify_qdisc+0x4c5/0x1980 net/sched/sch_api.c:1660\n rtnetlink_rcv_msg+0x413/0xb80 net/core/rtnetlink.c:5571\n netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2496\n netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]\n netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1345\n netlink_sendmsg+0x904/0xdf0 net/netlink/af_netlink.c:1921\n sock_sendmsg_nosec net/socket.c:704 [inline]\n sock_sendmsg+0xcf/0x120 net/socket.c:724\n ____sys_sendmsg+0x6e8/0x810 net/socket.c:2409\n ___sys_sendmsg+0xf3/0x170 net/socket.c:2463\n __sys_sendmsg+0xe5/0x1b0 net/socket.c:2492\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\nRIP: 0033:0x7f1bb06badb9\nCode: Unable to access opcode bytes at RIP 0x7f1bb06bad8f.\nRSP: 002b:00007fff3012a658 EFLAGS: 00000246 ORIG_RAX: 000000000000002e\nRAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f1bb06badb9\nRDX: 0000000000000000 RSI: 00000000200007c0 RDI: 0000000000000003\nRBP: 0000000000000000 R08: 0000000000000003 R09: 0000000000000003\nR10: 0000000000000003 R11: 0000000000000246 R12: 00007fff3012a688\nR13: 00007fff3012a6a0 R14: 00007fff3012a6e0 R15: 00000000000013c2\n </TASK>" |
| } |
| ], |
| "affected": [ |
| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "unaffected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "net/sched/sch_cake.c" |
| ], |
| "versions": [ |
| { |
| "version": "046f6fd5daefac7f5abdafb436b30f63bc7c602b", |
| "lessThan": "4e388232e630ebe4f94b4a0715ec98c0e2b314a3", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "046f6fd5daefac7f5abdafb436b30f63bc7c602b", |
| "lessThan": "0d80462fbdcafd536dcad7569e65d3d14a7e9f2f", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "046f6fd5daefac7f5abdafb436b30f63bc7c602b", |
| "lessThan": "20ad1ef02f9ad5e1dda9eeb113e4c158b4806986", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "046f6fd5daefac7f5abdafb436b30f63bc7c602b", |
| "lessThan": "f6deae2e2d83bd267e1986f5d71d8c458e18fd99", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "046f6fd5daefac7f5abdafb436b30f63bc7c602b", |
| "lessThan": "ab443c53916730862cec202078d36fd4008bea79", |
| "status": "affected", |
| "versionType": "git" |
| } |
| ] |
| }, |
| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "affected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "net/sched/sch_cake.c" |
| ], |
| "versions": [ |
| { |
| "version": "4.19", |
| "status": "affected" |
| }, |
| { |
| "version": "0", |
| "lessThan": "4.19", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "4.19.222", |
| "lessThanOrEqual": "4.19.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.4.168", |
| "lessThanOrEqual": "5.4.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.10.88", |
| "lessThanOrEqual": "5.10.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.15.11", |
| "lessThanOrEqual": "5.15.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.16", |
| "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": "4.19", |
| "versionEndExcluding": "4.19.222" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "4.19", |
| "versionEndExcluding": "5.4.168" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "4.19", |
| "versionEndExcluding": "5.10.88" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "4.19", |
| "versionEndExcluding": "5.15.11" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "4.19", |
| "versionEndExcluding": "5.16" |
| } |
| ] |
| } |
| ] |
| } |
| ], |
| "references": [ |
| { |
| "url": "https://git.kernel.org/stable/c/4e388232e630ebe4f94b4a0715ec98c0e2b314a3" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/0d80462fbdcafd536dcad7569e65d3d14a7e9f2f" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/20ad1ef02f9ad5e1dda9eeb113e4c158b4806986" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/f6deae2e2d83bd267e1986f5d71d8c458e18fd99" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/ab443c53916730862cec202078d36fd4008bea79" |
| } |
| ], |
| "title": "sch_cake: do not call cake_destroy() from cake_init()", |
| "x_generator": { |
| "engine": "bippy-1.2.0" |
| } |
| } |
| }, |
| "cveMetadata": { |
| "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038", |
| "cveID": "CVE-2021-47598", |
| "requesterUserId": "gregkh@kernel.org", |
| "serial": "1", |
| "state": "PUBLISHED" |
| }, |
| "dataType": "CVE_RECORD", |
| "dataVersion": "5.0" |
| } |
