{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2022-49691", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-02-26T02:21:30.442Z", "datePublished": "2025-02-26T02:24:15.146Z", "dateUpdated": "2026-05-11T19:04:47.587Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T19:04:47.587Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nerspan: do not assume transport header is always set\n\nRewrite tests in ip6erspan_tunnel_xmit() and\nerspan_fb_xmit() to not assume transport header is set.\n\nsyzbot reported:\n\nWARNING: CPU: 0 PID: 1350 at include/linux/skbuff.h:2911 skb_transport_header include/linux/skbuff.h:2911 [inline]\nWARNING: CPU: 0 PID: 1350 at include/linux/skbuff.h:2911 ip6erspan_tunnel_xmit+0x15af/0x2eb0 net/ipv6/ip6_gre.c:963\nModules linked in:\nCPU: 0 PID: 1350 Comm: aoe_tx0 Not tainted 5.19.0-rc2-syzkaller-00160-g274295c6e53f #0\nHardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014\nRIP: 0010:skb_transport_header include/linux/skbuff.h:2911 [inline]\nRIP: 0010:ip6erspan_tunnel_xmit+0x15af/0x2eb0 net/ipv6/ip6_gre.c:963\nCode: 0f 47 f0 40 88 b5 7f fe ff ff e8 8c 16 4b f9 89 de bf ff ff ff ff e8 a0 12 4b f9 66 83 fb ff 0f 85 1d f1 ff ff e8 71 16 4b f9 <0f> 0b e9 43 f0 ff ff e8 65 16 4b f9 48 8d 85 30 ff ff ff ba 60 00\nRSP: 0018:ffffc90005daf910 EFLAGS: 00010293\nRAX: 0000000000000000 RBX: 000000000000ffff RCX: 0000000000000000\nRDX: ffff88801f032100 RSI: ffffffff882e8d3f RDI: 0000000000000003\nRBP: ffffc90005dafab8 R08: 0000000000000003 R09: 000000000000ffff\nR10: 000000000000ffff R11: 0000000000000000 R12: ffff888024f21d40\nR13: 000000000000a288 R14: 00000000000000b0 R15: ffff888025a2e000\nFS: 0000000000000000(0000) GS:ffff88802c800000(0000) knlGS:0000000000000000\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 0000001b2e425000 CR3: 000000006d099000 CR4: 0000000000152ef0\nCall Trace:\n\n__netdev_start_xmit include/linux/netdevice.h:4805 [inline]\nnetdev_start_xmit include/linux/netdevice.h:4819 [inline]\nxmit_one net/core/dev.c:3588 [inline]\ndev_hard_start_xmit+0x188/0x880 net/core/dev.c:3604\nsch_direct_xmit+0x19f/0xbe0 net/sched/sch_generic.c:342\n__dev_xmit_skb net/core/dev.c:3815 [inline]\n__dev_queue_xmit+0x14a1/0x3900 net/core/dev.c:4219\ndev_queue_xmit include/linux/netdevice.h:2994 [inline]\ntx+0x6a/0xc0 drivers/block/aoe/aoenet.c:63\nkthread+0x1e7/0x3b0 drivers/block/aoe/aoecmd.c:1229\nkthread+0x2e9/0x3a0 kernel/kthread.c:376\nret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:302\n" } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "net/ipv4/ip_gre.c", "net/ipv6/ip6_gre.c" ], "versions": [ { "version": "d5db21a3e6977dcb42cee3d16cd69901fa66510a", "lessThan": "fb401f37f6eadf24956d93687e5758c163c0d12b", "status": "affected", "versionType": "git" }, { "version": "d5db21a3e6977dcb42cee3d16cd69901fa66510a", "lessThan": "02da602bc2f353dccd9e489a604490034ded941e", "status": "affected", "versionType": "git" }, { "version": "d5db21a3e6977dcb42cee3d16cd69901fa66510a", "lessThan": "cec9867ee55478ef5dcb2adf030fe0c442a4c4ee", "status": "affected", "versionType": "git" }, { "version": "d5db21a3e6977dcb42cee3d16cd69901fa66510a", "lessThan": "a3b2470399f679587c45abe56e551caf10becca2", "status": "affected", "versionType": "git" }, { "version": "d5db21a3e6977dcb42cee3d16cd69901fa66510a", "lessThan": "2c8aeffc7c586d53e1d380f010bdca4f710f2480", "status": "affected", "versionType": "git" }, { "version": "d5db21a3e6977dcb42cee3d16cd69901fa66510a", "lessThan": "301bd140ed0b24f0da660874c7e8a47dad8c8222", "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/ipv4/ip_gre.c", "net/ipv6/ip6_gre.c" ], "versions": [ { "version": "4.18", "status": "affected" }, { "version": "0", "lessThan": "4.18", "status": "unaffected", "versionType": "semver" }, { "version": "4.19.250", "lessThanOrEqual": "4.19.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.4.202", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.127", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.51", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.18.8", "lessThanOrEqual": "5.18.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.19", "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": "4.18", "versionEndExcluding": "4.19.250" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.18", "versionEndExcluding": "5.4.202" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.18", "versionEndExcluding": "5.10.127" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.18", "versionEndExcluding": "5.15.51" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.18", "versionEndExcluding": "5.18.8" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.18", "versionEndExcluding": "5.19" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/fb401f37f6eadf24956d93687e5758c163c0d12b" }, { "url": "https://git.kernel.org/stable/c/02da602bc2f353dccd9e489a604490034ded941e" }, { "url": "https://git.kernel.org/stable/c/cec9867ee55478ef5dcb2adf030fe0c442a4c4ee" }, { "url": "https://git.kernel.org/stable/c/a3b2470399f679587c45abe56e551caf10becca2" }, { "url": "https://git.kernel.org/stable/c/2c8aeffc7c586d53e1d380f010bdca4f710f2480" }, { "url": "https://git.kernel.org/stable/c/301bd140ed0b24f0da660874c7e8a47dad8c8222" } ], "title": "erspan: do not assume transport header is always set", "x_generator": { "engine": "bippy-1.2.0" } } } }