310 lines
16 KiB
JSON
310 lines
16 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-2023-53344",
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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": "2025-09-16T16:08:59.566Z",
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"datePublished": "2025-09-17T14:56:37.024Z",
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"dateUpdated": "2026-05-11T19:43:07.980Z"
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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": "2026-05-11T19:43:07.980Z"
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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\ncan: bcm: bcm_tx_setup(): fix KMSAN uninit-value in vfs_write\n\nSyzkaller reported the following issue:\n\n=====================================================\nBUG: KMSAN: uninit-value in aio_rw_done fs/aio.c:1520 [inline]\nBUG: KMSAN: uninit-value in aio_write+0x899/0x950 fs/aio.c:1600\n aio_rw_done fs/aio.c:1520 [inline]\n aio_write+0x899/0x950 fs/aio.c:1600\n io_submit_one+0x1d1c/0x3bf0 fs/aio.c:2019\n __do_sys_io_submit fs/aio.c:2078 [inline]\n __se_sys_io_submit+0x293/0x770 fs/aio.c:2048\n __x64_sys_io_submit+0x92/0xd0 fs/aio.c:2048\n do_syscall_x64 arch/x86/entry/common.c:50 [inline]\n do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80\n entry_SYSCALL_64_after_hwframe+0x63/0xcd\n\nUninit was created at:\n slab_post_alloc_hook mm/slab.h:766 [inline]\n slab_alloc_node mm/slub.c:3452 [inline]\n __kmem_cache_alloc_node+0x71f/0xce0 mm/slub.c:3491\n __do_kmalloc_node mm/slab_common.c:967 [inline]\n __kmalloc+0x11d/0x3b0 mm/slab_common.c:981\n kmalloc_array include/linux/slab.h:636 [inline]\n bcm_tx_setup+0x80e/0x29d0 net/can/bcm.c:930\n bcm_sendmsg+0x3a2/0xce0 net/can/bcm.c:1351\n sock_sendmsg_nosec net/socket.c:714 [inline]\n sock_sendmsg net/socket.c:734 [inline]\n sock_write_iter+0x495/0x5e0 net/socket.c:1108\n call_write_iter include/linux/fs.h:2189 [inline]\n aio_write+0x63a/0x950 fs/aio.c:1600\n io_submit_one+0x1d1c/0x3bf0 fs/aio.c:2019\n __do_sys_io_submit fs/aio.c:2078 [inline]\n __se_sys_io_submit+0x293/0x770 fs/aio.c:2048\n __x64_sys_io_submit+0x92/0xd0 fs/aio.c:2048\n do_syscall_x64 arch/x86/entry/common.c:50 [inline]\n do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80\n entry_SYSCALL_64_after_hwframe+0x63/0xcd\n\nCPU: 1 PID: 5034 Comm: syz-executor350 Not tainted 6.2.0-rc6-syzkaller-80422-geda666ff2276 #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023\n=====================================================\n\nWe can follow the call chain and find that 'bcm_tx_setup' function\ncalls 'memcpy_from_msg' to copy some content to the newly allocated\nframe of 'op->frames'. After that the 'len' field of copied structure\nbeing compared with some constant value (64 or 8). However, if\n'memcpy_from_msg' returns an error, we will compare some uninitialized\nmemory. This triggers 'uninit-value' issue.\n\nThis patch will add 'memcpy_from_msg' possible errors processing to\navoid uninit-value issue.\n\nTested via syzkaller"
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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/can/bcm.c"
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],
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"versions": [
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{
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"version": "6f3b911d5f29b98752e5da86a295210c0c4f4e14",
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"lessThan": "3fa0f1e0e31b1b73cdf59d4c36c7242e6ef821be",
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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": "6f3b911d5f29b98752e5da86a295210c0c4f4e14",
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"lessThan": "618b15d09fed6126356101543451d49860db4388",
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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": "6f3b911d5f29b98752e5da86a295210c0c4f4e14",
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"lessThan": "78bc7f0ab99458221224d3ab97199c0f8e6861f1",
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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": "6f3b911d5f29b98752e5da86a295210c0c4f4e14",
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"lessThan": "ab2a55907823f0bca56b6d03ea05e4071ba8535f",
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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": "6f3b911d5f29b98752e5da86a295210c0c4f4e14",
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"lessThan": "bf70e0eab64c625da84d9fdf4e84466b79418920",
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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": "6f3b911d5f29b98752e5da86a295210c0c4f4e14",
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"lessThan": "c11dbc7705b3739974ac31a13f4ab81e61a5fb07",
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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": "6f3b911d5f29b98752e5da86a295210c0c4f4e14",
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"lessThan": "2e6ad51c709fa794e0ce26003c9c9cd944e3383a",
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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": "6f3b911d5f29b98752e5da86a295210c0c4f4e14",
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"lessThan": "2b4c99f7d9a57ecd644eda9b1fb0a1072414959f",
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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/can/bcm.c"
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],
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"versions": [
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{
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"version": "4.8",
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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": "4.8",
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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": "4.14.312",
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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": "4.19.280",
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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": "5.4.240",
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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": "5.10.177",
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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": "5.15.106",
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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": "6.1.23",
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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": "6.2.10",
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"lessThanOrEqual": "6.2.*",
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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": "6.3",
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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": "4.8",
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"versionEndExcluding": "4.14.312"
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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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"versionEndExcluding": "4.19.280"
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionEndExcluding": "5.4.240"
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},
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{
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.8",
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"versionEndExcluding": "5.10.177"
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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": "4.8",
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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},
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.8",
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"versionEndExcluding": "6.2.10"
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},
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.8",
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"versionEndExcluding": "6.3"
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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/3fa0f1e0e31b1b73cdf59d4c36c7242e6ef821be"
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},
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{
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"url": "https://git.kernel.org/stable/c/618b15d09fed6126356101543451d49860db4388"
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},
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{
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"url": "https://git.kernel.org/stable/c/78bc7f0ab99458221224d3ab97199c0f8e6861f1"
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},
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{
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"url": "https://git.kernel.org/stable/c/ab2a55907823f0bca56b6d03ea05e4071ba8535f"
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},
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{
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"url": "https://git.kernel.org/stable/c/bf70e0eab64c625da84d9fdf4e84466b79418920"
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},
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{
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"url": "https://git.kernel.org/stable/c/c11dbc7705b3739974ac31a13f4ab81e61a5fb07"
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},
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{
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"url": "https://git.kernel.org/stable/c/2e6ad51c709fa794e0ce26003c9c9cd944e3383a"
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},
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{
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"url": "https://git.kernel.org/stable/c/2b4c99f7d9a57ecd644eda9b1fb0a1072414959f"
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}
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],
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"title": "can: bcm: bcm_tx_setup(): fix KMSAN uninit-value in vfs_write",
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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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"cvssV3_1": {
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"scope": "UNCHANGED",
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"version": "3.1",
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"baseScore": 5.5,
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"attackVector": "LOCAL",
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"baseSeverity": "MEDIUM",
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"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
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"integrityImpact": "NONE",
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"userInteraction": "NONE",
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"attackComplexity": "LOW",
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"availabilityImpact": "HIGH",
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"privilegesRequired": "LOW",
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"confidentialityImpact": "NONE"
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}
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},
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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-2023-53344",
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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": "2026-01-14T18:39:34.603082Z"
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}
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}
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}
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],
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"problemTypes": [
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{
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"descriptions": [
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{
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"lang": "en",
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"type": "CWE",
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"cweId": "CWE-908",
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"description": "CWE-908 Use of Uninitialized Resource"
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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": "2026-01-14T18:43:02.515Z"
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}
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}
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]
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}
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} |