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CVE-2022-50401: Linux, грешка в паметта

9.8

CVSS 3.1

Няма данни

Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)

Няма потвърждение

Атакува се

Няма данни

Време до експлоатация

Атакува се по мрежата, без особени условия, без вход и без действие от потребителя.

CVE радар: още уязвимости от този вид

  • Експлоатация: няма данни за експлоатация
  • Атаката не може да се автоматизира

Описание

Оригинално описание

In the Linux kernel, the following vulnerability has been resolved: nfsd: under NFSv4.1, fix double svc_xprt_put on rpc_create failure On error situation `clp->cl_cb_conn.cb_xprt` should not be given a reference to the xprt otherwise both client cleanup and the error handling path of the caller call to put it. Better to delay handing over the reference to a later branch. [ 72.530665] refcount_t: underflow; use-after-free. [ 72.531933] WARNING: CPU: 0 PID: 173 at lib/refcount.c:28 refcount_warn_saturate+0xcf/0x120 [ 72.533075] Modules linked in: nfsd(OE) nfsv4(OE) nfsv3(OE) nfs(OE) lockd(OE) compat_nfs_ssc(OE) nfs_acl(OE) rpcsec_gss_krb5(OE) auth_rpcgss(OE) rpcrdma(OE) dns_resolver fscache netfs grace rdma_cm iw_cm ib_cm sunrpc(OE) mlx5_ib mlx5_core mlxfw pci_hyperv_intf ib_uverbs ib_core xt_MASQUERADE nf_conntrack_netlink nft_counter xt_addrtype nft_compat br_netfilter bridge stp llc nft_reject_inet nf_reject_ipv4 nf_reject_ipv6 nft_reject nft_ct nft_chain_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ip_set overlay nf_tables nfnetlink crct10dif_pclmul crc32_pclmul ghash_clmulni_intel xfs serio_raw virtio_net virtio_blk net_failover failover fuse [last unloaded: sunrpc] [ 72.540389] CPU: 0 PID: 173 Comm: kworker/u16:5 Tainted: G OE 5.15.82-dan #1 [ 72.541511] Hardware name: Red Hat KVM/RHEL-AV, BIOS 1.16.0-3.module+el8.7.0+1084+97b81f61 04/01/2014 [ 72.542717] Workqueue: nfsd4_callbacks nfsd4_run_cb_work [nfsd] [ 72.543575] RIP: 0010:refcount_warn_saturate+0xcf/0x120 [ 72.544299] Code: 55 00 0f 0b 5d e9 01 50 98 00 80 3d 75 9e 39 08 00 0f 85 74 ff ff ff 48 c7 c7 e8 d1 60 8e c6 05 61 9e 39 08 01 e8 f6 51 55 00 <0f> 0b 5d e9 d9 4f 98 00 80 3d 4b 9e 39 08 00 0f 85 4c ff ff ff 48 [ 72.546666] RSP: 0018:ffffb3f841157cf0 EFLAGS: 00010286 [ 72.547393] RAX: 0000000000000026 RBX: ffff89ac6231d478 RCX: 0000000000000000 [ 72.548324] RDX: ffff89adb7c2c2c0 RSI: ffff89adb7c205c0 RDI: ffff89adb7c205c0 [ 72.549271] RBP: ffffb3f841157

Засегнати продукти

  • Linux Linux: 69151594c72a1748cf93ae5b5fa68d5084253dce преди 707bcca9616002d204091ca7c4d1d91151104332; 0c4fb76c4e711d9e4e70ddc6732310a17076175d преди 15fc60aa5bdcf6d5f93000d3d00579fc67632ee0; 22c721560ef24003bcb9c3d9c358841dcfa4e212 преди 9b4ae8c42d2ff09ed7c5832ccce5684c55e5ed23; e8cac2e3067e8587f8271c2177cc5ca924a61b54 преди fddac3b4578d302ac9e51e7f03a9aae6254ae2a3; a4abc6b12eb1f7a533c2e7484cfa555454ff0977 преди c1207219a4bfa50121c9345d5d165470d0a82531; a4abc6b12eb1f7a533c2e7484cfa555454ff0977 преди a472f069ced8601979f53c13c0cf20236074ed46; a4abc6b12eb1f7a533c2e7484cfa555454ff0977 преди e2f9f03e4537f3fcc8fd2bdd3248530c3477a371; a4abc6b12eb1f7a533c2e7484cfa555454ff0977 преди d843ebd860c58a38e45527e8ec6516059f4c97f3; a4abc6b12eb1f7a533c2e7484cfa555454ff0977 преди 3bc8edc98bd43540dbe648e4ef91f443d6d20a24; f5a50e848e4509448b8b91536b5d421722bf154b; c745f9ef3c8cbae70556131eaeaf0f64510243b7; 4.9.229 преди 4.9.337; 4.14.186 преди 4.14.303; 4.19.130 преди 4.19.270; 5.4.49 преди 5.4.229; 4.4.229 преди 4.5; 5.7.6 преди 5.8
  • Linux Linux: 5.8; преди 5.8; 4.9.337 до 4.9.*; 4.14.303 до 4.14.*; 4.19.270 до 4.19.*; 5.4.229 до 5.4.*; 5.10.163 до 5.10.*; 5.15.86 до 5.15.*; 6.0.16 до 6.0.*; 6.1.2 до 6.1.*; от 6.2 нататък

Вид слабост

История

  • 18 септември 2025 Публикувано

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