282 lines
13 KiB
JSON
282 lines
13 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-2024-26731",
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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": "2024-02-19T14:20:24.164Z",
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"datePublished": "2024-04-03T17:00:18.823Z",
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"dateUpdated": "2026-05-23T15:37:23.958Z"
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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": "2026-05-23T15:37:23.958Z"
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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, sockmap: Fix NULL pointer dereference in sk_psock_verdict_data_ready()\n\nsyzbot reported the following NULL pointer dereference issue [1]:\n\n BUG: kernel NULL pointer dereference, address: 0000000000000000\n [...]\n RIP: 0010:0x0\n [...]\n Call Trace:\n <TASK>\n sk_psock_verdict_data_ready+0x232/0x340 net/core/skmsg.c:1230\n unix_stream_sendmsg+0x9b4/0x1230 net/unix/af_unix.c:2293\n sock_sendmsg_nosec net/socket.c:730 [inline]\n __sock_sendmsg+0x221/0x270 net/socket.c:745\n ____sys_sendmsg+0x525/0x7d0 net/socket.c:2584\n ___sys_sendmsg net/socket.c:2638 [inline]\n __sys_sendmsg+0x2b0/0x3a0 net/socket.c:2667\n do_syscall_64+0xf9/0x240\n entry_SYSCALL_64_after_hwframe+0x6f/0x77\n\nIf sk_psock_verdict_data_ready() and sk_psock_stop_verdict() are called\nconcurrently, psock->saved_data_ready can be NULL, causing the above issue.\n\nThis patch fixes this issue by calling the appropriate data ready function\nusing the sk_psock_data_ready() helper and protecting it from concurrency\nwith sk->sk_callback_lock."
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}
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],
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{
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"product": "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/skmsg.c"
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],
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},
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{
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"version": "6.1.32",
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"lessThan": "6.1.80",
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"status": "affected",
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"versionType": "semver"
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},
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{
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"version": "6.3.6",
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"lessThan": "6.4",
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"status": "affected",
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}
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]
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},
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{
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"net/core/skmsg.c"
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],
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{
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"version": "6.4",
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"version": "0",
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},
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{
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"version": "6.6.19",
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"lessThanOrEqual": "6.6.*",
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"status": "unaffected",
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},
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{
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"version": "6.7.7",
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"lessThanOrEqual": "6.7.*",
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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": "6.8",
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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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"versionStartIncluding": "6.1.32",
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}
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"title": "bpf, sockmap: Fix NULL pointer dereference in sk_psock_verdict_data_ready()",
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"cweId": "CWE-476",
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"description": "CWE-476 NULL Pointer Dereference"
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"metrics": [
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"attackVector": "NETWORK",
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"type": "ssvc",
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"content": {
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"timestamp": "2024-04-03T18:10:44.552667Z",
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"id": "CVE-2024-26731",
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