{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2022-48839", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-07-16T11:38:08.909Z", "datePublished": "2024-07-16T12:25:10.521Z", "dateUpdated": "2026-05-11T18:48:09.788Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T18:48:09.788Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/packet: fix slab-out-of-bounds access in packet_recvmsg()\n\nsyzbot found that when an AF_PACKET socket is using PACKET_COPY_THRESH\nand mmap operations, tpacket_rcv() is queueing skbs with\ngarbage in skb->cb[], triggering a too big copy [1]\n\nPresumably, users of af_packet using mmap() already gets correct\nmetadata from the mapped buffer, we can simply make sure\nto clear 12 bytes that might be copied to user space later.\n\nBUG: KASAN: stack-out-of-bounds in memcpy include/linux/fortify-string.h:225 [inline]\nBUG: KASAN: stack-out-of-bounds in packet_recvmsg+0x56c/0x1150 net/packet/af_packet.c:3489\nWrite of size 165 at addr ffffc9000385fb78 by task syz-executor233/3631\n\nCPU: 0 PID: 3631 Comm: syz-executor233 Not tainted 5.17.0-rc7-syzkaller-02396-g0b3660695e80 #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011\nCall Trace:\n <TASK>\n __dump_stack lib/dump_stack.c:88 [inline]\n dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106\n print_address_description.constprop.0.cold+0xf/0x336 mm/kasan/report.c:255\n __kasan_report mm/kasan/report.c:442 [inline]\n kasan_report.cold+0x83/0xdf mm/kasan/report.c:459\n check_region_inline mm/kasan/generic.c:183 [inline]\n kasan_check_range+0x13d/0x180 mm/kasan/generic.c:189\n memcpy+0x39/0x60 mm/kasan/shadow.c:66\n memcpy include/linux/fortify-string.h:225 [inline]\n packet_recvmsg+0x56c/0x1150 net/packet/af_packet.c:3489\n sock_recvmsg_nosec net/socket.c:948 [inline]\n sock_recvmsg net/socket.c:966 [inline]\n sock_recvmsg net/socket.c:962 [inline]\n ____sys_recvmsg+0x2c4/0x600 net/socket.c:2632\n ___sys_recvmsg+0x127/0x200 net/socket.c:2674\n __sys_recvmsg+0xe2/0x1a0 net/socket.c:2704\n do_syscall_x64 arch/x86/entry/common.c:50 [inline]\n do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80\n entry_SYSCALL_64_after_hwframe+0x44/0xae\nRIP: 0033:0x7fdfd5954c29\nCode: 28 00 00 00 75 05 48 83 c4 28 c3 e8 41 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48\nRSP: 002b:00007ffcf8e71e48 EFLAGS: 00000246 ORIG_RAX: 000000000000002f\nRAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fdfd5954c29\nRDX: 0000000000000000 RSI: 0000000020000500 RDI: 0000000000000005\nRBP: 0000000000000000 R08: 000000000000000d R09: 000000000000000d\nR10: 0000000000000000 R11: 0000000000000246 R12: 00007ffcf8e71e60\nR13: 00000000000f4240 R14: 000000000000c1ff R15: 00007ffcf8e71e54\n </TASK>\n\naddr ffffc9000385fb78 is located in stack of task syz-executor233/3631 at offset 32 in frame:\n ____sys_recvmsg+0x0/0x600 include/linux/uio.h:246\n\nthis frame has 1 object:\n [32, 160) 'addr'\n\nMemory state around the buggy address:\n ffffc9000385fa80: 00 04 f3 f3 f3 f3 f3 00 00 00 00 00 00 00 00 00\n ffffc9000385fb00: 00 00 00 00 00 00 00 00 00 00 00 f1 f1 f1 f1 00\n>ffffc9000385fb80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 f3\n ^\n ffffc9000385fc00: f3 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00 f1\n ffffc9000385fc80: f1 f1 f1 00 f2 f2 f2 00 f2 f2 f2 00 00 00 00 00\n=================================================================="}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/packet/af_packet.c"], "versions": 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"lessThan": "ef591b35176029fdefea38e8388ffa371e18f4b2", "status": "affected", "versionType": "git"}, {"version": "0fb375fb9b93b7d822debc6a734052337ccfdb1f", "lessThan": "c700525fcc06b05adfea78039de02628af79e07a", "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/packet/af_packet.c"], "versions": [{"version": "2.6.14", "status": "affected"}, {"version": "0", "lessThan": "2.6.14", "status": "unaffected", "versionType": "semver"}, {"version": "4.9.308", "lessThanOrEqual": "4.9.*", "status": "unaffected", "versionType": "semver"}, {"version": "4.14.273", "lessThanOrEqual": "4.14.*", "status": "unaffected", "versionType": "semver"}, {"version": "4.19.236", "lessThanOrEqual": "4.19.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.4.187", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.108", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.31", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.16.17", "lessThanOrEqual": "5.16.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.17", "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": "2.6.14", "versionEndExcluding": "4.9.308"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.14", "versionEndExcluding": "4.14.273"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.14", "versionEndExcluding": "4.19.236"}, {"vulnerable": true, "criteria": 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{"url": "https://git.kernel.org/stable/c/268dcf1f7b3193bc446ec3d14e08a240e9561e4d"}, {"url": "https://git.kernel.org/stable/c/70b7b3c055fd4a464da8da55ff4c1f84269f9b02"}, {"url": "https://git.kernel.org/stable/c/a055f5f2841f7522b44a2b1eccb1951b4b03d51a"}, {"url": "https://git.kernel.org/stable/c/ef591b35176029fdefea38e8388ffa371e18f4b2"}, {"url": "https://git.kernel.org/stable/c/c700525fcc06b05adfea78039de02628af79e07a"}], "title": "net/packet: fix slab-out-of-bounds access in packet_recvmsg()", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T15:25:01.517Z"}, "title": "CVE Program Container", "references": [{"url": "https://git.kernel.org/stable/c/b9d5772d60f8e7ef34e290f72fc20e3a4883e7d0", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/b1e27cda1e3c12b705875bb7e247a97168580e33", "tags": ["x_transferred"]}, {"url": 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"134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-09-11T17:34:10.031Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CVE Program Container", "references": [{"url": "https://git.kernel.org/stable/c/b9d5772d60f8e7ef34e290f72fc20e3a4883e7d0", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/b1e27cda1e3c12b705875bb7e247a97168580e33", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/a33dd1e6693f80d805155b3f69c18c2f642915da", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/268dcf1f7b3193bc446ec3d14e08a240e9561e4d", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/70b7b3c055fd4a464da8da55ff4c1f84269f9b02", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/a055f5f2841f7522b44a2b1eccb1951b4b03d51a", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/ef591b35176029fdefea38e8388ffa371e18f4b2", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/c700525fcc06b05adfea78039de02628af79e07a", "tags": ["x_transferred"]}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T15:25:01.517Z"}}, {"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2022-48839", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-09-10T16:57:00.467657Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-09-11T12:42:21.083Z"}}], "cna": {"title": "net/packet: fix slab-out-of-bounds access in packet_recvmsg()", "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "0fb375fb9b93b7d822debc6a734052337ccfdb1f", "lessThan": "b9d5772d60f8e7ef34e290f72fc20e3a4883e7d0", "versionType": "git"}, {"status": "affected", "version": "0fb375fb9b93b7d822debc6a734052337ccfdb1f", "lessThan": "b1e27cda1e3c12b705875bb7e247a97168580e33", "versionType": "git"}, {"status": "affected", "version": "0fb375fb9b93b7d822debc6a734052337ccfdb1f", "lessThan": "a33dd1e6693f80d805155b3f69c18c2f642915da", "versionType": "git"}, {"status": "affected", "version": "0fb375fb9b93b7d822debc6a734052337ccfdb1f", "lessThan": "268dcf1f7b3193bc446ec3d14e08a240e9561e4d", "versionType": "git"}, {"status": "affected", "version": "0fb375fb9b93b7d822debc6a734052337ccfdb1f", "lessThan": "70b7b3c055fd4a464da8da55ff4c1f84269f9b02", "versionType": "git"}, {"status": "affected", "version": "0fb375fb9b93b7d822debc6a734052337ccfdb1f", "lessThan": "a055f5f2841f7522b44a2b1eccb1951b4b03d51a", "versionType": "git"}, {"status": "affected", "version": "0fb375fb9b93b7d822debc6a734052337ccfdb1f", "lessThan": "ef591b35176029fdefea38e8388ffa371e18f4b2", "versionType": "git"}, {"status": "affected", "version": "0fb375fb9b93b7d822debc6a734052337ccfdb1f", "lessThan": "c700525fcc06b05adfea78039de02628af79e07a", "versionType": "git"}], "programFiles": ["net/packet/af_packet.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "2.6.14"}, {"status": "unaffected", "version": "0", "lessThan": "2.6.14", "versionType": "semver"}, {"status": "unaffected", "version": "4.9.308", "versionType": "semver", "lessThanOrEqual": "4.9.*"}, {"status": "unaffected", "version": "4.14.273", "versionType": "semver", "lessThanOrEqual": "4.14.*"}, {"status": "unaffected", "version": "4.19.236", "versionType": "semver", "lessThanOrEqual": "4.19.*"}, {"status": "unaffected", "version": "5.4.187", "versionType": "semver", "lessThanOrEqual": "5.4.*"}, {"status": "unaffected", "version": "5.10.108", "versionType": "semver", "lessThanOrEqual": "5.10.*"}, {"status": "unaffected", "version": "5.15.31", "versionType": "semver", "lessThanOrEqual": "5.15.*"}, {"status": "unaffected", "version": "5.16.17", "versionType": "semver", "lessThanOrEqual": "5.16.*"}, {"status": "unaffected", "version": "5.17", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["net/packet/af_packet.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/b9d5772d60f8e7ef34e290f72fc20e3a4883e7d0"}, {"url": "https://git.kernel.org/stable/c/b1e27cda1e3c12b705875bb7e247a97168580e33"}, {"url": "https://git.kernel.org/stable/c/a33dd1e6693f80d805155b3f69c18c2f642915da"}, {"url": "https://git.kernel.org/stable/c/268dcf1f7b3193bc446ec3d14e08a240e9561e4d"}, {"url": "https://git.kernel.org/stable/c/70b7b3c055fd4a464da8da55ff4c1f84269f9b02"}, {"url": "https://git.kernel.org/stable/c/a055f5f2841f7522b44a2b1eccb1951b4b03d51a"}, {"url": "https://git.kernel.org/stable/c/ef591b35176029fdefea38e8388ffa371e18f4b2"}, {"url": "https://git.kernel.org/stable/c/c700525fcc06b05adfea78039de02628af79e07a"}], "x_generator": {"engine": "bippy-1.2.0"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/packet: fix slab-out-of-bounds access in packet_recvmsg()\n\nsyzbot found that when an AF_PACKET socket is using PACKET_COPY_THRESH\nand mmap operations, tpacket_rcv() is queueing skbs with\ngarbage in skb->cb[], triggering a too big copy [1]\n\nPresumably, users of af_packet using mmap() already gets correct\nmetadata from the mapped buffer, we can simply make sure\nto clear 12 bytes that might be copied to user space later.\n\nBUG: KASAN: stack-out-of-bounds in memcpy include/linux/fortify-string.h:225 [inline]\nBUG: KASAN: stack-out-of-bounds in packet_recvmsg+0x56c/0x1150 net/packet/af_packet.c:3489\nWrite of size 165 at addr ffffc9000385fb78 by task syz-executor233/3631\n\nCPU: 0 PID: 3631 Comm: syz-executor233 Not tainted 5.17.0-rc7-syzkaller-02396-g0b3660695e80 #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011\nCall Trace:\n <TASK>\n __dump_stack lib/dump_stack.c:88 [inline]\n dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106\n print_address_description.constprop.0.cold+0xf/0x336 mm/kasan/report.c:255\n __kasan_report mm/kasan/report.c:442 [inline]\n kasan_report.cold+0x83/0xdf mm/kasan/report.c:459\n check_region_inline mm/kasan/generic.c:183 [inline]\n kasan_check_range+0x13d/0x180 mm/kasan/generic.c:189\n memcpy+0x39/0x60 mm/kasan/shadow.c:66\n memcpy include/linux/fortify-string.h:225 [inline]\n packet_recvmsg+0x56c/0x1150 net/packet/af_packet.c:3489\n sock_recvmsg_nosec net/socket.c:948 [inline]\n sock_recvmsg net/socket.c:966 [inline]\n sock_recvmsg net/socket.c:962 [inline]\n ____sys_recvmsg+0x2c4/0x600 net/socket.c:2632\n ___sys_recvmsg+0x127/0x200 net/socket.c:2674\n __sys_recvmsg+0xe2/0x1a0 net/socket.c:2704\n do_syscall_x64 arch/x86/entry/common.c:50 [inline]\n do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80\n entry_SYSCALL_64_after_hwframe+0x44/0xae\nRIP: 0033:0x7fdfd5954c29\nCode: 28 00 00 00 75 05 48 83 c4 28 c3 e8 41 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48\nRSP: 002b:00007ffcf8e71e48 EFLAGS: 00000246 ORIG_RAX: 000000000000002f\nRAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fdfd5954c29\nRDX: 0000000000000000 RSI: 0000000020000500 RDI: 0000000000000005\nRBP: 0000000000000000 R08: 000000000000000d R09: 000000000000000d\nR10: 0000000000000000 R11: 0000000000000246 R12: 00007ffcf8e71e60\nR13: 00000000000f4240 R14: 000000000000c1ff R15: 00007ffcf8e71e54\n </TASK>\n\naddr ffffc9000385fb78 is located in stack of task syz-executor233/3631 at offset 32 in frame:\n ____sys_recvmsg+0x0/0x600 include/linux/uio.h:246\n\nthis frame has 1 object:\n [32, 160) 'addr'\n\nMemory state around the buggy address:\n ffffc9000385fa80: 00 04 f3 f3 f3 f3 f3 00 00 00 00 00 00 00 00 00\n ffffc9000385fb00: 00 00 00 00 00 00 00 00 00 00 00 f1 f1 f1 f1 00\n>ffffc9000385fb80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 f3\n ^\n ffffc9000385fc00: f3 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00 f1\n ffffc9000385fc80: f1 f1 f1 00 f2 f2 f2 00 f2 f2 f2 00 00 00 00 00\n=================================================================="}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "4.9.308", "versionStartIncluding": "2.6.14"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "4.14.273", "versionStartIncluding": "2.6.14"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "4.19.236", "versionStartIncluding": "2.6.14"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.4.187", "versionStartIncluding": "2.6.14"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.10.108", "versionStartIncluding": "2.6.14"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.15.31", "versionStartIncluding": "2.6.14"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.16.17", "versionStartIncluding": "2.6.14"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.17", "versionStartIncluding": "2.6.14"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-05-04T08:24:29.153Z"}}}, "cveMetadata": {"cveId": "CVE-2022-48839", "state": "PUBLISHED", "dateUpdated": "2025-05-04T08:24:29.153Z", "dateReserved": "2024-07-16T11:38:08.909Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2024-07-16T12:25:10.521Z", "assignerShortName": "Linux"}, "dataVersion": "5.1"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "661D636E-06A1-4E3D-A282-F625B52C2A61", "versionEndExcluding": "4.9.308", "versionStartIncluding": "2.6.14", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "A1E9CE4F-B0EA-4F88-9562-4F113E598085", "versionEndExcluding": "4.14.273", "versionStartIncluding": "4.10", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "09979837-E01F-4E28-B943-9F680CA3D278", "versionEndExcluding": "4.19.236", "versionStartIncluding": "4.15", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "D9FFB805-4ED2-4FAE-9EF4-8AB4BC9D8F5C", "versionEndExcluding": "5.4.187", "versionStartIncluding": "4.20", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "24925527-AC4A-4594-8D6C-3B34D31862C5", "versionEndExcluding": "5.10.108", "versionStartIncluding": "5.5", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "F25C317E-A673-47D1-844E-171C9BFDF352", "versionEndExcluding": "5.15.31", "versionStartIncluding": "5.11", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "DC9A634D-C617-4F8C-ADEF-AF94CE69D687", "versionEndExcluding": "5.16.17", "versionStartIncluding": "5.16", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/packet: fix slab-out-of-bounds access in packet_recvmsg()\n\nsyzbot found that when an AF_PACKET socket is using PACKET_COPY_THRESH\nand mmap operations, tpacket_rcv() is queueing skbs with\ngarbage in skb->cb[], triggering a too big copy [1]\n\nPresumably, users of af_packet using mmap() already gets correct\nmetadata from the mapped buffer, we can simply make sure\nto clear 12 bytes that might be copied to user space later.\n\nBUG: KASAN: stack-out-of-bounds in memcpy include/linux/fortify-string.h:225 [inline]\nBUG: KASAN: stack-out-of-bounds in packet_recvmsg+0x56c/0x1150 net/packet/af_packet.c:3489\nWrite of size 165 at addr ffffc9000385fb78 by task syz-executor233/3631\n\nCPU: 0 PID: 3631 Comm: syz-executor233 Not tainted 5.17.0-rc7-syzkaller-02396-g0b3660695e80 #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011\nCall Trace:\n <TASK>\n __dump_stack lib/dump_stack.c:88 [inline]\n dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106\n print_address_description.constprop.0.cold+0xf/0x336 mm/kasan/report.c:255\n __kasan_report mm/kasan/report.c:442 [inline]\n kasan_report.cold+0x83/0xdf mm/kasan/report.c:459\n check_region_inline mm/kasan/generic.c:183 [inline]\n kasan_check_range+0x13d/0x180 mm/kasan/generic.c:189\n memcpy+0x39/0x60 mm/kasan/shadow.c:66\n memcpy include/linux/fortify-string.h:225 [inline]\n packet_recvmsg+0x56c/0x1150 net/packet/af_packet.c:3489\n sock_recvmsg_nosec net/socket.c:948 [inline]\n sock_recvmsg net/socket.c:966 [inline]\n sock_recvmsg net/socket.c:962 [inline]\n ____sys_recvmsg+0x2c4/0x600 net/socket.c:2632\n ___sys_recvmsg+0x127/0x200 net/socket.c:2674\n __sys_recvmsg+0xe2/0x1a0 net/socket.c:2704\n do_syscall_x64 arch/x86/entry/common.c:50 [inline]\n do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80\n entry_SYSCALL_64_after_hwframe+0x44/0xae\nRIP: 0033:0x7fdfd5954c29\nCode: 28 00 00 00 75 05 48 83 c4 28 c3 e8 41 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48\nRSP: 002b:00007ffcf8e71e48 EFLAGS: 00000246 ORIG_RAX: 000000000000002f\nRAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fdfd5954c29\nRDX: 0000000000000000 RSI: 0000000020000500 RDI: 0000000000000005\nRBP: 0000000000000000 R08: 000000000000000d R09: 000000000000000d\nR10: 0000000000000000 R11: 0000000000000246 R12: 00007ffcf8e71e60\nR13: 00000000000f4240 R14: 000000000000c1ff R15: 00007ffcf8e71e54\n </TASK>\n\naddr ffffc9000385fb78 is located in stack of task syz-executor233/3631 at offset 32 in frame:\n ____sys_recvmsg+0x0/0x600 include/linux/uio.h:246\n\nthis frame has 1 object:\n [32, 160) 'addr'\n\nMemory state around the buggy address:\n ffffc9000385fa80: 00 04 f3 f3 f3 f3 f3 00 00 00 00 00 00 00 00 00\n ffffc9000385fb00: 00 00 00 00 00 00 00 00 00 00 00 f1 f1 f1 f1 00\n>ffffc9000385fb80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 f3\n ^\n ffffc9000385fc00: f3 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00 f1\n ffffc9000385fc80: f1 f1 f1 00 f2 f2 f2 00 f2 f2 f2 00 00 00 00 00\n=================================================================="}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net/packet: corrige el acceso slab-out-of-bounds en paquete_recvmsg() syzbot descubri\u00f3 que cuando un socket AF_PACKET utiliza operaciones PACKET_COPY_THRESH y mmap, tpacket_rcv() est\u00e1 poniendo en cola skbs con basura en skb-&gt;cb[], lo que desencadena una copia demasiado grande [1] Presumiblemente, los usuarios de af_packet que usan mmap() ya obtienen los metadatos correctos del b\u00fafer asignado, simplemente podemos asegurarnos de borrar 12 bytes que podr\u00edan copiarse al usuario espacio m\u00e1s tarde. ERROR: KASAN: pila fuera de los l\u00edmites en memcpy include/linux/fortify-string.h:225 [en l\u00ednea] ERROR: KASAN: pila fuera de los l\u00edmites en paquete_recvmsg+0x56c/0x1150 net/packet/af_packet. c:3489 Escritura de tama\u00f1o 165 en la direcci\u00f3n ffffc9000385fb78 por tarea syz-executor233/3631 CPU: 0 PID: 3631 Comm: syz-executor233 Not tainted 5.17.0-rc7-syzkaller-02396-g0b3660695e80 #0 Nombre de hardware: Google Google Compute Engine /Google Compute Engine, BIOS Google 01/01/2011 Seguimiento de llamadas: __dump_stack lib/dump_stack.c:88 [en l\u00ednea] dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106 print_address_description.constprop.0.cold+0xf /0x336 mm/kasan/report.c:255 __kasan_report mm/kasan/report.c:442 [en l\u00ednea] kasan_report.cold+0x83/0xdf mm/kasan/report.c:459 check_region_inline mm/kasan/generic.c:183 [en l\u00ednea] kasan_check_range+0x13d/0x180 mm/kasan/generic.c:189 memcpy+0x39/0x60 mm/kasan/shadow.c:66 memcpy include/linux/fortify-string.h:225 [en l\u00ednea] paquete_recvmsg+0x56c/ 0x1150 net/packet/af_packet.c:3489 sock_recvmsg_nosec net/socket.c:948 [en l\u00ednea] sock_recvmsg net/socket.c:966 [en l\u00ednea] sock_recvmsg net/socket.c:962 [en l\u00ednea] ____sys_recvmsg+0x2c4/0x600 net/ socket.c:2632 ___sys_recvmsg+0x127/0x200 net/socket.c:2674 __sys_recvmsg+0xe2/0x1a0 net/socket.c:2704 do_syscall_x64 arch/x86/entry/common.c:50 [en l\u00ednea] arco xb0 /x86/entry/common.c:80 Entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7fdfd5954c29 C\u00f3digo: 28 00 00 00 75 05 48 83 c4 28 c3 e8 41 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 &lt;48&gt; 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffcf8e71e48 EFLAGS: 0000246 ORIG_RAX: 000000000000002f RAX : ffffffffffffffda RBX: 0000000000000003 RCX: 00007fdfd5954c29 RDX: 0000000000000000 RSI: 0000000020000500 RDI: 000000000000005 RBP: 0000000 000000000 R08: 000000000000000d R09: 000000000000000d R10: 0000000000000000 R11: 00000000000000246 R12: 00007ffcf8e71e60 R13: 0000f4240 R14: 000000000000c1ff R15: 00007ffcf8e71e54 direcci\u00f3n ffffc9000385fb78 est\u00e1 ubicado en la pila de la tarea syz-executor233/3631 en el desplazamiento 32 en el marco: ____sys_recvmsg+0x0/0x600 include/linux/uio.h:246 este marco tiene 1 objeto: [32, 160) 'addr' Estado de memoria alrededor del buggy direcci\u00f3n: ffffc9000385fa80: 00 04 f3 f3 f3 f3 f3 00 00 00 00 00 00 00 00 00 ffffc9000385fb00: 00 00 00 00 00 00 00 00 00 00 00 f1 f1 f1 f1 00 c9000385fb80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 f3 ^ ffffc9000385fc00: f3 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00 f1 ffffc9000385fc80: f1 f1 f1 00 f2 f2 f2 00 f2 f2 f2 0 0 00 00 00 00 ====== ==================================================== =========="}], "id": "CVE-2022-48839", "lastModified": "2024-11-21T07:34:11.183", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2024-07-16T13:15:11.353", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Mailing List", "Patch"], "url": "https://git.kernel.org/stable/c/268dcf1f7b3193bc446ec3d14e08a240e9561e4d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Mailing List", "Patch"], "url": "https://git.kernel.org/stable/c/70b7b3c055fd4a464da8da55ff4c1f84269f9b02"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Mailing List", "Patch"], "url": "https://git.kernel.org/stable/c/a055f5f2841f7522b44a2b1eccb1951b4b03d51a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Mailing List", "Patch"], "url": "https://git.kernel.org/stable/c/a33dd1e6693f80d805155b3f69c18c2f642915da"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Mailing List", "Patch"], "url": "https://git.kernel.org/stable/c/b1e27cda1e3c12b705875bb7e247a97168580e33"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Mailing List", "Patch"], "url": "https://git.kernel.org/stable/c/b9d5772d60f8e7ef34e290f72fc20e3a4883e7d0"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Mailing List", "Patch"], "url": "https://git.kernel.org/stable/c/c700525fcc06b05adfea78039de02628af79e07a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Mailing List", "Patch"], "url": "https://git.kernel.org/stable/c/ef591b35176029fdefea38e8388ffa371e18f4b2"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Patch"], "url": "https://git.kernel.org/stable/c/268dcf1f7b3193bc446ec3d14e08a240e9561e4d"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Patch"], "url": "https://git.kernel.org/stable/c/70b7b3c055fd4a464da8da55ff4c1f84269f9b02"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Patch"], "url": "https://git.kernel.org/stable/c/a055f5f2841f7522b44a2b1eccb1951b4b03d51a"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Patch"], "url": "https://git.kernel.org/stable/c/a33dd1e6693f80d805155b3f69c18c2f642915da"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Patch"], "url": "https://git.kernel.org/stable/c/b1e27cda1e3c12b705875bb7e247a97168580e33"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Patch"], "url": "https://git.kernel.org/stable/c/b9d5772d60f8e7ef34e290f72fc20e3a4883e7d0"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Patch"], "url": "https://git.kernel.org/stable/c/c700525fcc06b05adfea78039de02628af79e07a"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Patch"], "url": "https://git.kernel.org/stable/c/ef591b35176029fdefea38e8388ffa371e18f4b2"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-125"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: net/packet: fix slab-out-of-bounds access in packet_recvmsg()", "id": "2298180", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2298180"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-125", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nnet/packet: fix slab-out-of-bounds access in packet_recvmsg()\nsyzbot found that when an AF_PACKET socket is using PACKET_COPY_THRESH\nand mmap operations, tpacket_rcv() is queueing skbs with\ngarbage in skb->cb[], triggering a too big copy [1]\nPresumably, users of af_packet using mmap() already gets correct\nmetadata from the mapped buffer, we can simply make sure\nto clear 12 bytes that might be copied to user space later.\nBUG: KASAN: stack-out-of-bounds in memcpy include/linux/fortify-string.h:225 [inline]\nBUG: KASAN: stack-out-of-bounds in packet_recvmsg+0x56c/0x1150 net/packet/af_packet.c:3489\nWrite of size 165 at addr ffffc9000385fb78 by task syz-executor233/3631\nCPU: 0 PID: 3631 Comm: syz-executor233 Not tainted 5.17.0-rc7-syzkaller-02396-g0b3660695e80 #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011\nCall Trace:\n<TASK>\n__dump_stack lib/dump_stack.c:88 [inline]\ndump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106\nprint_address_description.constprop.0.cold+0xf/0x336 mm/kasan/report.c:255\n__kasan_report mm/kasan/report.c:442 [inline]\nkasan_report.cold+0x83/0xdf mm/kasan/report.c:459\ncheck_region_inline mm/kasan/generic.c:183 [inline]\nkasan_check_range+0x13d/0x180 mm/kasan/generic.c:189\nmemcpy+0x39/0x60 mm/kasan/shadow.c:66\nmemcpy include/linux/fortify-string.h:225 [inline]\npacket_recvmsg+0x56c/0x1150 net/packet/af_packet.c:3489\nsock_recvmsg_nosec net/socket.c:948 [inline]\nsock_recvmsg net/socket.c:966 [inline]\nsock_recvmsg net/socket.c:962 [inline]\n____sys_recvmsg+0x2c4/0x600 net/socket.c:2632\n___sys_recvmsg+0x127/0x200 net/socket.c:2674\n__sys_recvmsg+0xe2/0x1a0 net/socket.c:2704\ndo_syscall_x64 arch/x86/entry/common.c:50 [inline]\ndo_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80\nentry_SYSCALL_64_after_hwframe+0x44/0xae\nRIP: 0033:0x7fdfd5954c29\nCode: 28 00 00 00 75 05 48 83 c4 28 c3 e8 41 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48\nRSP: 002b:00007ffcf8e71e48 EFLAGS: 00000246 ORIG_RAX: 000000000000002f\nRAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fdfd5954c29\nRDX: 0000000000000000 RSI: 0000000020000500 RDI: 0000000000000005\nRBP: 0000000000000000 R08: 000000000000000d R09: 000000000000000d\nR10: 0000000000000000 R11: 0000000000000246 R12: 00007ffcf8e71e60\nR13: 00000000000f4240 R14: 000000000000c1ff R15: 00007ffcf8e71e54\n</TASK>\naddr ffffc9000385fb78 is located in stack of task syz-executor233/3631 at offset 32 in frame:\n____sys_recvmsg+0x0/0x600 include/linux/uio.h:246\nthis frame has 1 object:\n[32, 160) 'addr'\nMemory state around the buggy address:\nffffc9000385fa80: 00 04 f3 f3 f3 f3 f3 00 00 00 00 00 00 00 00 00\nffffc9000385fb00: 00 00 00 00 00 00 00 00 00 00 00 f1 f1 f1 f1 00\n>ffffc9000385fb80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 f3\n^\nffffc9000385fc00: f3 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00 f1\nffffc9000385fc80: f1 f1 f1 00 f2 f2 f2 00 f2 f2 f2 00 00 00 00 00\n=================================================================="], "mitigation": {"lang": "en:us", "value": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability."}, "name": "CVE-2022-48839", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Will not fix", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Will not fix", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Will not fix", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Will not fix", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-07-16T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-48839\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-48839\nhttps://lore.kernel.org/linux-cve-announce/2024071621-CVE-2022-48839-09f9@gregkh/T"], "threat_severity": "Moderate"}

{}