282 lines
14 KiB
JSON
282 lines
14 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2022-50253",
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"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"state": "PUBLISHED",
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"assignerShortName": "Linux",
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"dateReserved": "2025-09-15T13:58:00.973Z",
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"datePublished": "2025-09-15T14:02:34.849Z",
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"dateUpdated": "2026-11-05T20:10:31.418Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"shortName": "Linux",
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"dateUpdated": "2026-05-11T19:15:44.305Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: make sure skb->len != 0 when redirecting to a tunneling device\n\nsyzkaller managed to trigger another case where skb->len == 0\nwhen we enter __dev_queue_xmit:\n\nWARNING: CPU: 0 PID: 2470 at include/linux/skbuff.h:2576 skb_assert_len include/linux/skbuff.h:2576 [inline]\nWARNING: CPU: 0 PID: 2470 at include/linux/skbuff.h:2576 __dev_queue_xmit+0x2069/0x35e0 net/core/dev.c:4295\n\nCall Trace:\n dev_queue_xmit+0x17/0x20 net/core/dev.c:4406\n __bpf_tx_skb net/core/filter.c:2115 [inline]\n __bpf_redirect_no_mac net/core/filter.c:2140 [inline]\n __bpf_redirect+0x5fb/0xda0 net/core/filter.c:2163\n ____bpf_clone_redirect net/core/filter.c:2447 [inline]\n bpf_clone_redirect+0x247/0x390 net/core/filter.c:2419\n bpf_prog_48159a89cb4a9a16+0x59/0x5e\n bpf_dispatcher_nop_func include/linux/bpf.h:897 [inline]\n __bpf_prog_run include/linux/filter.h:596 [inline]\n bpf_prog_run include/linux/filter.h:603 [inline]\n bpf_test_run+0x46c/0x890 net/bpf/test_run.c:402\n bpf_prog_test_run_skb+0xbdc/0x14c0 net/bpf/test_run.c:1170\n bpf_prog_test_run+0x345/0x3c0 kernel/bpf/syscall.c:3648\n __sys_bpf+0x43a/0x6c0 kernel/bpf/syscall.c:5005\n __do_sys_bpf kernel/bpf/syscall.c:5091 [inline]\n __se_sys_bpf kernel/bpf/syscall.c:5089 [inline]\n __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5089\n do_syscall_64+0x54/0x70 arch/x86/entry/common.c:48\n entry_SYSCALL_64_after_hwframe+0x61/0xc6\n\nThe reproducer doesn't really reproduce outside of syzkaller\nenvironment, so I'm taking a guess here. It looks like we\ndo generate correct ETH_HLEN-sized packet, but we redirect\nthe packet to the tunneling device. Before we do so, we\n__skb_pull l2 header and arrive again at skb->len == 0.\nDoesn't seem like we can do anything better than having\nan explicit check after __skb_pull?"
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}
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],
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"affected": [
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "unaffected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"net/core/filter.c"
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],
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"versions": [
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{
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"version": "4e3264d21b90984c2165e8fe5a7b64cf25bc2c2d",
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"lessThan": "ffbccc5fb0a67424e12f7f8da210c04c8063f797",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "4e3264d21b90984c2165e8fe5a7b64cf25bc2c2d",
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"lessThan": "e6a63203e5a90a39392fa1a7ffc60f5e9baf642a",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "4e3264d21b90984c2165e8fe5a7b64cf25bc2c2d",
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"lessThan": "772431f30ca040cfbf31b791d468bac6a9ca74d3",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "4e3264d21b90984c2165e8fe5a7b64cf25bc2c2d",
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"lessThan": "6d935a02658be82585ecb39aab339faa84496650",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "4e3264d21b90984c2165e8fe5a7b64cf25bc2c2d",
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"lessThan": "5d3f4478d22b2cb1810f6fe0f797411e9d87b3e5",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "4e3264d21b90984c2165e8fe5a7b64cf25bc2c2d",
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"lessThan": "1b65704b8c08ae92db29f720d3b298031131da53",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "4e3264d21b90984c2165e8fe5a7b64cf25bc2c2d",
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"lessThan": "f186303845a01cc7e991f9dc51d7e5a3cdc7aedb",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "4e3264d21b90984c2165e8fe5a7b64cf25bc2c2d",
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"lessThan": "07ec7b502800ba9f7b8b15cb01dd6556bb41aaca",
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"status": "affected",
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"versionType": "git"
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}
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]
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},
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "affected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"net/core/filter.c"
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],
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"versions": [
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{
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"version": "4.9",
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"status": "affected"
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},
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{
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"version": "0",
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"lessThan": "4.9",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "4.14.303",
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"lessThanOrEqual": "4.14.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "4.19.270",
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"lessThanOrEqual": "4.19.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.4.229",
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"lessThanOrEqual": "5.4.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.10.163",
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"lessThanOrEqual": "5.10.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.15.86",
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"lessThanOrEqual": "5.15.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.0.16",
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"lessThanOrEqual": "6.0.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.1.2",
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"lessThanOrEqual": "6.1.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.2",
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"lessThanOrEqual": "*",
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"status": "unaffected",
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"versionType": "original_commit_for_fix"
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}
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]
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}
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],
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"cpeApplicability": [
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{
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"nodes": [
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{
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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.9",
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"versionEndExcluding": "4.14.303"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.9",
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"versionEndExcluding": "4.19.270"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.9",
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"versionEndExcluding": "5.4.229"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.9",
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"versionEndExcluding": "5.10.163"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.9",
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"versionEndExcluding": "5.15.86"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.9",
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"versionEndExcluding": "6.0.16"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.9",
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"versionEndExcluding": "6.1.2"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.9",
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"versionEndExcluding": "6.2"
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}
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]
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}
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]
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}
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],
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/ffbccc5fb0a67424e12f7f8da210c04c8063f797"
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},
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{
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"url": "https://git.kernel.org/stable/c/e6a63203e5a90a39392fa1a7ffc60f5e9baf642a"
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},
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{
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"url": "https://git.kernel.org/stable/c/772431f30ca040cfbf31b791d468bac6a9ca74d3"
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},
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{
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"url": "https://git.kernel.org/stable/c/6d935a02658be82585ecb39aab339faa84496650"
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},
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{
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"url": "https://git.kernel.org/stable/c/5d3f4478d22b2cb1810f6fe0f797411e9d87b3e5"
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},
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{
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"url": "https://git.kernel.org/stable/c/1b65704b8c08ae92db29f720d3b298031131da53"
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},
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{
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"url": "https://git.kernel.org/stable/c/f186303845a01cc7e991f9dc51d7e5a3cdc7aedb"
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},
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{
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"url": "https://git.kernel.org/stable/c/07ec7b502800ba9f7b8b15cb01dd6556bb41aaca"
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}
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],
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"title": "bpf: make sure skb->len != 0 when redirecting to a tunneling device",
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"x_generator": {
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"engine": "bippy-1.2.0"
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}
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},
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"adp": [
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{
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"metrics": [
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{
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"other": {
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"type": "ssvc",
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"content": {
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"id": "CVE-2022-50253",
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"role": "CISA Coordinator",
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"options": [
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{
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"Exploitation": "none"
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},
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{
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"Automatable": "no"
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},
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{
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"Technical Impact": "partial"
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}
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],
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"version": "2.0.3",
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"timestamp": "2026-11-05T20:07:59.397162Z"
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}
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}
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2026-11-05T20:10:31.418Z"
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}
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}
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]
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}
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} |