| { |
| "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: test for not too small csum_start in virtio_net_hdr_to_skb()\n\nsyzbot was able to trigger this warning [1], after injecting a\nmalicious packet through af_packet, setting skb->csum_start and thus\nthe transport header to an incorrect value.\n\nWe can at least make sure the transport header is after\nthe end of the network header (with a estimated minimal size).\n\n[1]\n[ 67.873027] skb len=4096 headroom=16 headlen=14 tailroom=0\nmac=(-1,-1) mac_len=0 net=(16,-6) trans=10\nshinfo(txflags=0 nr_frags=1 gso(size=0 type=0 segs=0))\ncsum(0xa start=10 offset=0 ip_summed=3 complete_sw=0 valid=0 level=0)\nhash(0x0 sw=0 l4=0) proto=0x0800 pkttype=0 iif=0\npriority=0x0 mark=0x0 alloc_cpu=10 vlan_all=0x0\nencapsulation=0 inner(proto=0x0000, mac=0, net=0, trans=0)\n[ 67.877172] dev name=veth0_vlan feat=0x000061164fdd09e9\n[ 67.877764] sk family=17 type=3 proto=0\n[ 67.878279] skb linear: 00000000: 00 00 10 00 00 00 00 00 0f 00 00 00 08 00\n[ 67.879128] skb frag: 00000000: 0e 00 07 00 00 00 28 00 08 80 1c 00 04 00 00 02\n[ 67.879877] skb frag: 00000010: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00\n[ 67.880647] skb frag: 00000020: 00 00 02 00 00 00 08 00 1b 00 00 00 00 00 00 00\n[ 67.881156] skb frag: 00000030: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00\n[ 67.881753] skb frag: 00000040: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00\n[ 67.882173] skb frag: 00000050: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00\n[ 67.882790] skb frag: 00000060: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00\n[ 67.883171] skb frag: 00000070: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00\n[ 67.883733] skb frag: 00000080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00\n[ 67.884206] skb frag: 00000090: 00 00 00 00 00 00 00 00 00 00 69 70 76 6c 61 6e\n[ 67.884704] skb frag: 000000a0: 31 00 00 00 00 00 00 00 00 00 2b 00 00 00 00 00\n[ 67.885139] skb frag: 000000b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00\n[ 67.885677] skb frag: 000000c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00\n[ 67.886042] skb frag: 000000d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00\n[ 67.886408] skb frag: 000000e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00\n[ 67.887020] skb frag: 000000f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00\n[ 67.887384] skb frag: 00000100: 00 00\n[ 67.887878] ------------[ cut here ]------------\n[ 67.887908] offset (-6) >= skb_headlen() (14)\n[ 67.888445] WARNING: CPU: 10 PID: 2088 at net/core/dev.c:3332 skb_checksum_help (net/core/dev.c:3332 (discriminator 2))\n[ 67.889353] Modules linked in: macsec macvtap macvlan hsr wireguard curve25519_x86_64 libcurve25519_generic libchacha20poly1305 chacha_x86_64 libchacha poly1305_x86_64 dummy bridge sr_mod cdrom evdev pcspkr i2c_piix4 9pnet_virtio 9p 9pnet netfs\n[ 67.890111] CPU: 10 UID: 0 PID: 2088 Comm: b363492833 Not tainted 6.11.0-virtme #1011\n[ 67.890183] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-debian-1.16.3-2 04/01/2014\n[ 67.890309] RIP: 0010:skb_checksum_help (net/core/dev.c:3332 (discriminator 2))\n[ 67.891043] Call Trace:\n[ 67.891173] <TASK>\n[ 67.891274] ? __warn (kernel/panic.c:741)\n[ 67.891320] ? skb_checksum_help (net/core/dev.c:3332 (discriminator 2))\n[ 67.891333] ? report_bug (lib/bug.c:180 lib/bug.c:219)\n[ 67.891348] ? handle_bug (arch/x86/kernel/traps.c:239)\n[ 67.891363] ? exc_invalid_op (arch/x86/kernel/traps.c:260 (discriminator 1))\n[ 67.891372] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621)\n[ 67.891388] ? skb_checksum_help (net/core/dev.c:3332 (discriminator 2))\n[ 67.891399] ? skb_checksum_help (net/core/dev.c:3332 (discriminator 2))\n[ 67.891416] ip_do_fragment (net/ipv4/ip_output.c:777 (discriminator 1))\n[ 67.891448] ? __ip_local_out (./include/linux/skbuff.h:1146 ./include/net/l3mdev.h:196 ./include/net/l3mdev.h:213 ne\n---truncated---" |
| } |
| ], |
| "affected": [ |
| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "unaffected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "include/linux/virtio_net.h" |
| ], |
| "versions": [ |
| { |
| "version": "342c88f406c2acd3dd00767aeacafe883cebb374", |
| "lessThan": "d9dfd41e32ccc5198033ddd1ff1516822dfefa5a", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "9181d6f8a2bb32d158de66a84164fac05e3ddd18", |
| "lessThan": "4cc0648e9e3240496835dc698ace1d046d8d57ea", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "9181d6f8a2bb32d158de66a84164fac05e3ddd18", |
| "lessThan": "7711c419a915ee0dd91c125d2b967bbf2a72e9ac", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "9181d6f8a2bb32d158de66a84164fac05e3ddd18", |
| "lessThan": "49d14b54a527289d09a9480f214b8c586322310a", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "765290b628c2fb764bdfaf8088754439665751e8", |
| "status": "affected", |
| "versionType": "git" |
| } |
| ] |
| }, |
| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "affected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "include/linux/virtio_net.h" |
| ], |
| "versions": [ |
| { |
| "version": "6.8", |
| "status": "affected" |
| }, |
| { |
| "version": "0", |
| "lessThan": "6.8", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.6.55", |
| "lessThanOrEqual": "6.6.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.10.14", |
| "lessThanOrEqual": "6.10.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.11.3", |
| "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": "6.6.14", |
| "versionEndExcluding": "6.6.55" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "6.8", |
| "versionEndExcluding": "6.10.14" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "6.8", |
| "versionEndExcluding": "6.11.3" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "6.8", |
| "versionEndExcluding": "6.12" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "6.7.2" |
| } |
| ] |
| } |
| ] |
| } |
| ], |
| "references": [ |
| { |
| "url": "https://git.kernel.org/stable/c/d9dfd41e32ccc5198033ddd1ff1516822dfefa5a" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/4cc0648e9e3240496835dc698ace1d046d8d57ea" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/7711c419a915ee0dd91c125d2b967bbf2a72e9ac" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/49d14b54a527289d09a9480f214b8c586322310a" |
| } |
| ], |
| "title": "net: test for not too small csum_start in virtio_net_hdr_to_skb()", |
| "x_generator": { |
| "engine": "bippy-1.2.0" |
| } |
| } |
| }, |
| "cveMetadata": { |
| "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038", |
| "cveID": "CVE-2024-49947", |
| "requesterUserId": "gregkh@kernel.org", |
| "serial": "1", |
| "state": "PUBLISHED" |
| }, |
| "dataType": "CVE_RECORD", |
| "dataVersion": "5.0" |
| } |
