| { |
| "containers": { |
| "cna": { |
| "providerMetadata": { |
| "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038" |
| }, |
| "descriptions": [ |
| { |
| "lang": "en", |
| "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: sched: use RCU read-side critical section in taprio_dump()\n\nFix possible use-after-free in 'taprio_dump()' by adding RCU\nread-side critical section there. Never seen on x86 but\nfound on a KASAN-enabled arm64 system when investigating\nhttps://syzkaller.appspot.com/bug?extid=b65e0af58423fc8a73aa:\n\n[T15862] BUG: KASAN: slab-use-after-free in taprio_dump+0xa0c/0xbb0\n[T15862] Read of size 4 at addr ffff0000d4bb88f8 by task repro/15862\n[T15862]\n[T15862] CPU: 0 UID: 0 PID: 15862 Comm: repro Not tainted 6.11.0-rc1-00293-gdefaf1a2113a-dirty #2\n[T15862] Hardware name: QEMU QEMU Virtual Machine, BIOS edk2-20240524-5.fc40 05/24/2024\n[T15862] Call trace:\n[T15862] dump_backtrace+0x20c/0x220\n[T15862] show_stack+0x2c/0x40\n[T15862] dump_stack_lvl+0xf8/0x174\n[T15862] print_report+0x170/0x4d8\n[T15862] kasan_report+0xb8/0x1d4\n[T15862] __asan_report_load4_noabort+0x20/0x2c\n[T15862] taprio_dump+0xa0c/0xbb0\n[T15862] tc_fill_qdisc+0x540/0x1020\n[T15862] qdisc_notify.isra.0+0x330/0x3a0\n[T15862] tc_modify_qdisc+0x7b8/0x1838\n[T15862] rtnetlink_rcv_msg+0x3c8/0xc20\n[T15862] netlink_rcv_skb+0x1f8/0x3d4\n[T15862] rtnetlink_rcv+0x28/0x40\n[T15862] netlink_unicast+0x51c/0x790\n[T15862] netlink_sendmsg+0x79c/0xc20\n[T15862] __sock_sendmsg+0xe0/0x1a0\n[T15862] ____sys_sendmsg+0x6c0/0x840\n[T15862] ___sys_sendmsg+0x1ac/0x1f0\n[T15862] __sys_sendmsg+0x110/0x1d0\n[T15862] __arm64_sys_sendmsg+0x74/0xb0\n[T15862] invoke_syscall+0x88/0x2e0\n[T15862] el0_svc_common.constprop.0+0xe4/0x2a0\n[T15862] do_el0_svc+0x44/0x60\n[T15862] el0_svc+0x50/0x184\n[T15862] el0t_64_sync_handler+0x120/0x12c\n[T15862] el0t_64_sync+0x190/0x194\n[T15862]\n[T15862] Allocated by task 15857:\n[T15862] kasan_save_stack+0x3c/0x70\n[T15862] kasan_save_track+0x20/0x3c\n[T15862] kasan_save_alloc_info+0x40/0x60\n[T15862] __kasan_kmalloc+0xd4/0xe0\n[T15862] __kmalloc_cache_noprof+0x194/0x334\n[T15862] taprio_change+0x45c/0x2fe0\n[T15862] tc_modify_qdisc+0x6a8/0x1838\n[T15862] rtnetlink_rcv_msg+0x3c8/0xc20\n[T15862] netlink_rcv_skb+0x1f8/0x3d4\n[T15862] rtnetlink_rcv+0x28/0x40\n[T15862] netlink_unicast+0x51c/0x790\n[T15862] netlink_sendmsg+0x79c/0xc20\n[T15862] __sock_sendmsg+0xe0/0x1a0\n[T15862] ____sys_sendmsg+0x6c0/0x840\n[T15862] ___sys_sendmsg+0x1ac/0x1f0\n[T15862] __sys_sendmsg+0x110/0x1d0\n[T15862] __arm64_sys_sendmsg+0x74/0xb0\n[T15862] invoke_syscall+0x88/0x2e0\n[T15862] el0_svc_common.constprop.0+0xe4/0x2a0\n[T15862] do_el0_svc+0x44/0x60\n[T15862] el0_svc+0x50/0x184\n[T15862] el0t_64_sync_handler+0x120/0x12c\n[T15862] el0t_64_sync+0x190/0x194\n[T15862]\n[T15862] Freed by task 6192:\n[T15862] kasan_save_stack+0x3c/0x70\n[T15862] kasan_save_track+0x20/0x3c\n[T15862] kasan_save_free_info+0x4c/0x80\n[T15862] poison_slab_object+0x110/0x160\n[T15862] __kasan_slab_free+0x3c/0x74\n[T15862] kfree+0x134/0x3c0\n[T15862] taprio_free_sched_cb+0x18c/0x220\n[T15862] rcu_core+0x920/0x1b7c\n[T15862] rcu_core_si+0x10/0x1c\n[T15862] handle_softirqs+0x2e8/0xd64\n[T15862] __do_softirq+0x14/0x20" |
| } |
| ], |
| "affected": [ |
| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "unaffected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "net/sched/sch_taprio.c" |
| ], |
| "versions": [ |
| { |
| "version": "18cdd2f0998a4967b1fff4c43ed9aef049e42c39", |
| "lessThan": "b911fa9e92ee586e36479ad57b88f20471acaca1", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "18cdd2f0998a4967b1fff4c43ed9aef049e42c39", |
| "lessThan": "5d282467245f267c0b9ada3f7f309ff838521536", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "18cdd2f0998a4967b1fff4c43ed9aef049e42c39", |
| "lessThan": "e4369cb6acf6b895ac2453cc1cdf2f4326122c6d", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "18cdd2f0998a4967b1fff4c43ed9aef049e42c39", |
| "lessThan": "b22db8b8befe90b61c98626ca1a2fbb0505e9fe3", |
| "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_taprio.c" |
| ], |
| "versions": [ |
| { |
| "version": "6.1", |
| "status": "affected" |
| }, |
| { |
| "version": "0", |
| "lessThan": "6.1", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.1.117", |
| "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": "6.1", |
| "versionEndExcluding": "6.1.117" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "6.1", |
| "versionEndExcluding": "6.6.59" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "6.1", |
| "versionEndExcluding": "6.11.6" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "6.1", |
| "versionEndExcluding": "6.12" |
| } |
| ] |
| } |
| ] |
| } |
| ], |
| "references": [ |
| { |
| "url": "https://git.kernel.org/stable/c/b911fa9e92ee586e36479ad57b88f20471acaca1" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/5d282467245f267c0b9ada3f7f309ff838521536" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/e4369cb6acf6b895ac2453cc1cdf2f4326122c6d" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/b22db8b8befe90b61c98626ca1a2fbb0505e9fe3" |
| } |
| ], |
| "title": "net: sched: use RCU read-side critical section in taprio_dump()", |
| "x_generator": { |
| "engine": "bippy-1.2.0" |
| } |
| } |
| }, |
| "cveMetadata": { |
| "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038", |
| "cveID": "CVE-2024-50126", |
| "requesterUserId": "gregkh@kernel.org", |
| "serial": "1", |
| "state": "PUBLISHED" |
| }, |
| "dataType": "CVE_RECORD", |
| "dataVersion": "5.0" |
| } |
