| { |
| "containers": { |
| "cna": { |
| "providerMetadata": { |
| "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038" |
| }, |
| "descriptions": [ |
| { |
| "lang": "en", |
| "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmptcp: fix UaF in listener shutdown\n\nAs reported by Christoph after having refactored the passive\nsocket initialization, the mptcp listener shutdown path is prone\nto an UaF issue.\n\n BUG: KASAN: use-after-free in _raw_spin_lock_bh+0x73/0xe0\n Write of size 4 at addr ffff88810cb23098 by task syz-executor731/1266\n\n CPU: 1 PID: 1266 Comm: syz-executor731 Not tainted 6.2.0-rc59af4eaa31c1f6c00c8f1e448ed99a45c66340dd5 #6\n Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014\n Call Trace:\n <TASK>\n dump_stack_lvl+0x6e/0x91\n print_report+0x16a/0x46f\n kasan_report+0xad/0x130\n kasan_check_range+0x14a/0x1a0\n _raw_spin_lock_bh+0x73/0xe0\n subflow_error_report+0x6d/0x110\n sk_error_report+0x3b/0x190\n tcp_disconnect+0x138c/0x1aa0\n inet_child_forget+0x6f/0x2e0\n inet_csk_listen_stop+0x209/0x1060\n __mptcp_close_ssk+0x52d/0x610\n mptcp_destroy_common+0x165/0x640\n mptcp_destroy+0x13/0x80\n __mptcp_destroy_sock+0xe7/0x270\n __mptcp_close+0x70e/0x9b0\n mptcp_close+0x2b/0x150\n inet_release+0xe9/0x1f0\n __sock_release+0xd2/0x280\n sock_close+0x15/0x20\n __fput+0x252/0xa20\n task_work_run+0x169/0x250\n exit_to_user_mode_prepare+0x113/0x120\n syscall_exit_to_user_mode+0x1d/0x40\n do_syscall_64+0x48/0x90\n entry_SYSCALL_64_after_hwframe+0x72/0xdc\n\nThe msk grace period can legitly expire in between the last\nreference count dropped in mptcp_subflow_queue_clean() and\nthe later eventual access in inet_csk_listen_stop()\n\nAfter the previous patch we don't need anymore special-casing\nmsk listener socket cleanup: the mptcp worker will process each\nof the unaccepted msk sockets.\n\nJust drop the now unnecessary code.\n\nPlease note this commit depends on the two parent ones:\n\n mptcp: refactor passive socket initialization\n mptcp: use the workqueue to destroy unaccepted sockets" |
| } |
| ], |
| "affected": [ |
| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "unaffected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "net/mptcp/protocol.c", |
| "net/mptcp/protocol.h", |
| "net/mptcp/subflow.c" |
| ], |
| "versions": [ |
| { |
| "version": "6aeed9045071f2252ff4e98fc13d1e304f33e5b0", |
| "lessThan": "5564be74a22a61855f8b8c100d8c4abb003bb792", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "6aeed9045071f2252ff4e98fc13d1e304f33e5b0", |
| "lessThan": "0f4f4cf5d32f10543deb946a37111e714579511e", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "6aeed9045071f2252ff4e98fc13d1e304f33e5b0", |
| "lessThan": "0a3f4f1f9c27215e4ddcd312558342e57b93e518", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "a8a3e95c74e48c2c9b07b81fafda9122993f2e12", |
| "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/mptcp/protocol.c", |
| "net/mptcp/protocol.h", |
| "net/mptcp/subflow.c" |
| ], |
| "versions": [ |
| { |
| "version": "5.19", |
| "status": "affected" |
| }, |
| { |
| "version": "0", |
| "lessThan": "5.19", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.1.22", |
| "lessThanOrEqual": "6.1.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.2.8", |
| "lessThanOrEqual": "6.2.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.3", |
| "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": "5.19", |
| "versionEndExcluding": "6.1.22" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "5.19", |
| "versionEndExcluding": "6.2.8" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "5.19", |
| "versionEndExcluding": "6.3" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "5.18.10" |
| } |
| ] |
| } |
| ] |
| } |
| ], |
| "references": [ |
| { |
| "url": "https://git.kernel.org/stable/c/5564be74a22a61855f8b8c100d8c4abb003bb792" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/0f4f4cf5d32f10543deb946a37111e714579511e" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/0a3f4f1f9c27215e4ddcd312558342e57b93e518" |
| } |
| ], |
| "title": "mptcp: fix UaF in listener shutdown", |
| "x_generator": { |
| "engine": "bippy-1.2.0" |
| } |
| } |
| }, |
| "cveMetadata": { |
| "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038", |
| "cveID": "CVE-2023-53088", |
| "requesterUserId": "gregkh@kernel.org", |
| "serial": "1", |
| "state": "PUBLISHED" |
| }, |
| "dataType": "CVE_RECORD", |
| "dataVersion": "5.0" |
| } |
