CVE-2022-49916 (GCVE-0-2022-49916)
Vulnerability from cvelistv5
Published
2025-05-01 14:10
Modified
2025-10-01 16:00
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: rose: Fix NULL pointer dereference in rose_send_frame() The syzkaller reported an issue: KASAN: null-ptr-deref in range [0x0000000000000380-0x0000000000000387] CPU: 0 PID: 4069 Comm: kworker/0:15 Not tainted 6.0.0-syzkaller-02734-g0326074ff465 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 Workqueue: rcu_gp srcu_invoke_callbacks RIP: 0010:rose_send_frame+0x1dd/0x2f0 net/rose/rose_link.c:101 Call Trace: <IRQ> rose_transmit_clear_request+0x1d5/0x290 net/rose/rose_link.c:255 rose_rx_call_request+0x4c0/0x1bc0 net/rose/af_rose.c:1009 rose_loopback_timer+0x19e/0x590 net/rose/rose_loopback.c:111 call_timer_fn+0x1a0/0x6b0 kernel/time/timer.c:1474 expire_timers kernel/time/timer.c:1519 [inline] __run_timers.part.0+0x674/0xa80 kernel/time/timer.c:1790 __run_timers kernel/time/timer.c:1768 [inline] run_timer_softirq+0xb3/0x1d0 kernel/time/timer.c:1803 __do_softirq+0x1d0/0x9c8 kernel/softirq.c:571 [...] </IRQ> It triggers NULL pointer dereference when 'neigh->dev->dev_addr' is called in the rose_send_frame(). It's the first occurrence of the `neigh` is in rose_loopback_timer() as `rose_loopback_neigh', and the 'dev' in 'rose_loopback_neigh' is initialized sa nullptr. It had been fixed by commit 3b3fd068c56e3fbea30090859216a368398e39bf ("rose: Fix Null pointer dereference in rose_send_frame()") ever. But it's introduced by commit 3c53cd65dece47dd1f9d3a809f32e59d1d87b2b8 ("rose: check NULL rose_loopback_neigh->loopback") again. We fix it by add NULL check in rose_transmit_clear_request(). When the 'dev' in 'neigh' is NULL, we don't reply the request and just clear it. syzkaller don't provide repro, and I provide a syz repro like: r0 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2) ioctl$sock_inet_SIOCSIFFLAGS(r0, 0x8914, &(0x7f0000000180)={'rose0\x00', 0x201}) r1 = syz_init_net_socket$rose(0xb, 0x5, 0x0) bind$rose(r1, &(0x7f00000000c0)=@full={0xb, @dev, @null, 0x0, [@null, @null, @netrom, @netrom, @default, @null]}, 0x40) connect$rose(r1, &(0x7f0000000240)=@short={0xb, @dev={0xbb, 0xbb, 0xbb, 0x1, 0x0}, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x1}, 0x1, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}}, 0x1c)
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/01b9c68c121847d05a4ccef68244dadf82bfa331Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/3e2129c67daca21043a26575108f6286c85e71f6Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5b46adfbee1e429f33b10a88d6c00fa88f3d6c77Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a601e5eded33bb88b8a42743db8fef3ad41dd97ePatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b13be5e852b03f376058027e462fad4230240891Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/bbc03d74e641e824754443b908454ca9e203773ePatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e97c089d7a49f67027395ddf70bf327eeac2611ePatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f06186e5271b980bac03f5c97276ed0146ddc9b0Patch
Impacted products
Vendor Product Version
Linux Linux Version: 76885373129b13df35ecc9b4ee86ea5840f12133
Version: b8f9de195d6303f52bae16c7911f35ac14ba7e3d
Version: 0aae33feb7a56b28318f92c960a3d08d9c305984
Version: 6e4b20d548fc97ecbdca15c8d96302ee5e3e6313
Version: de3deadd11987070788b48825bec4647458b988d
Version: 9cf85759e104d7e9c3fd8920a554195b715d6797
Version: 3c53cd65dece47dd1f9d3a809f32e59d1d87b2b8
Version: 3c53cd65dece47dd1f9d3a809f32e59d1d87b2b8
Version: 9197ca40fd9de265caedba70d0cb5814c4e45952
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   Linux Linux Version: 6.0
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          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nrose: Fix NULL pointer dereference in rose_send_frame()\n\nThe syzkaller reported an issue:\n\nKASAN: null-ptr-deref in range [0x0000000000000380-0x0000000000000387]\nCPU: 0 PID: 4069 Comm: kworker/0:15 Not tainted 6.0.0-syzkaller-02734-g0326074ff465 #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022\nWorkqueue: rcu_gp srcu_invoke_callbacks\nRIP: 0010:rose_send_frame+0x1dd/0x2f0 net/rose/rose_link.c:101\nCall Trace:\n \u003cIRQ\u003e\n rose_transmit_clear_request+0x1d5/0x290 net/rose/rose_link.c:255\n rose_rx_call_request+0x4c0/0x1bc0 net/rose/af_rose.c:1009\n rose_loopback_timer+0x19e/0x590 net/rose/rose_loopback.c:111\n call_timer_fn+0x1a0/0x6b0 kernel/time/timer.c:1474\n expire_timers kernel/time/timer.c:1519 [inline]\n __run_timers.part.0+0x674/0xa80 kernel/time/timer.c:1790\n __run_timers kernel/time/timer.c:1768 [inline]\n run_timer_softirq+0xb3/0x1d0 kernel/time/timer.c:1803\n __do_softirq+0x1d0/0x9c8 kernel/softirq.c:571\n [...]\n \u003c/IRQ\u003e\n\nIt triggers NULL pointer dereference when \u0027neigh-\u003edev-\u003edev_addr\u0027 is\ncalled in the rose_send_frame(). It\u0027s the first occurrence of the\n`neigh` is in rose_loopback_timer() as `rose_loopback_neigh\u0027, and\nthe \u0027dev\u0027 in \u0027rose_loopback_neigh\u0027 is initialized sa nullptr.\n\nIt had been fixed by commit 3b3fd068c56e3fbea30090859216a368398e39bf\n(\"rose: Fix Null pointer dereference in rose_send_frame()\") ever.\nBut it\u0027s introduced by commit 3c53cd65dece47dd1f9d3a809f32e59d1d87b2b8\n(\"rose: check NULL rose_loopback_neigh-\u003eloopback\") again.\n\nWe fix it by add NULL check in rose_transmit_clear_request(). When\nthe \u0027dev\u0027 in \u0027neigh\u0027 is NULL, we don\u0027t reply the request and just\nclear it.\n\nsyzkaller don\u0027t provide repro, and I provide a syz repro like:\nr0 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)\nioctl$sock_inet_SIOCSIFFLAGS(r0, 0x8914, \u0026(0x7f0000000180)={\u0027rose0\\x00\u0027, 0x201})\nr1 = syz_init_net_socket$rose(0xb, 0x5, 0x0)\nbind$rose(r1, \u0026(0x7f00000000c0)=@full={0xb, @dev, @null, 0x0, [@null, @null, @netrom, @netrom, @default, @null]}, 0x40)\nconnect$rose(r1, \u0026(0x7f0000000240)=@short={0xb, @dev={0xbb, 0xbb, 0xbb, 0x1, 0x0}, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x1}, 0x1, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}}, 0x1c)"
        }
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        "dateUpdated": "2025-05-04T12:45:26.225Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/01b9c68c121847d05a4ccef68244dadf82bfa331"
        },
        {
          "url": "https://git.kernel.org/stable/c/bbc03d74e641e824754443b908454ca9e203773e"
        },
        {
          "url": "https://git.kernel.org/stable/c/5b46adfbee1e429f33b10a88d6c00fa88f3d6c77"
        },
        {
          "url": "https://git.kernel.org/stable/c/b13be5e852b03f376058027e462fad4230240891"
        },
        {
          "url": "https://git.kernel.org/stable/c/f06186e5271b980bac03f5c97276ed0146ddc9b0"
        },
        {
          "url": "https://git.kernel.org/stable/c/3e2129c67daca21043a26575108f6286c85e71f6"
        },
        {
          "url": "https://git.kernel.org/stable/c/a601e5eded33bb88b8a42743db8fef3ad41dd97e"
        },
        {
          "url": "https://git.kernel.org/stable/c/e97c089d7a49f67027395ddf70bf327eeac2611e"
        }
      ],
      "title": "rose: Fix NULL pointer dereference in rose_send_frame()",
      "x_generator": {
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  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-49916",
    "datePublished": "2025-05-01T14:10:56.851Z",
    "dateReserved": "2025-05-01T14:05:17.251Z",
    "dateUpdated": "2025-10-01T16:00:19.393Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2022-49916\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-05-01T15:16:16.820\",\"lastModified\":\"2025-10-01T16:15:51.500\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nrose: Fix NULL pointer dereference in rose_send_frame()\\n\\nThe syzkaller reported an issue:\\n\\nKASAN: null-ptr-deref in range [0x0000000000000380-0x0000000000000387]\\nCPU: 0 PID: 4069 Comm: kworker/0:15 Not tainted 6.0.0-syzkaller-02734-g0326074ff465 #0\\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022\\nWorkqueue: rcu_gp srcu_invoke_callbacks\\nRIP: 0010:rose_send_frame+0x1dd/0x2f0 net/rose/rose_link.c:101\\nCall Trace:\\n \u003cIRQ\u003e\\n rose_transmit_clear_request+0x1d5/0x290 net/rose/rose_link.c:255\\n rose_rx_call_request+0x4c0/0x1bc0 net/rose/af_rose.c:1009\\n rose_loopback_timer+0x19e/0x590 net/rose/rose_loopback.c:111\\n call_timer_fn+0x1a0/0x6b0 kernel/time/timer.c:1474\\n expire_timers kernel/time/timer.c:1519 [inline]\\n __run_timers.part.0+0x674/0xa80 kernel/time/timer.c:1790\\n __run_timers kernel/time/timer.c:1768 [inline]\\n run_timer_softirq+0xb3/0x1d0 kernel/time/timer.c:1803\\n __do_softirq+0x1d0/0x9c8 kernel/softirq.c:571\\n [...]\\n \u003c/IRQ\u003e\\n\\nIt triggers NULL pointer dereference when \u0027neigh-\u003edev-\u003edev_addr\u0027 is\\ncalled in the rose_send_frame(). It\u0027s the first occurrence of the\\n`neigh` is in rose_loopback_timer() as `rose_loopback_neigh\u0027, and\\nthe \u0027dev\u0027 in \u0027rose_loopback_neigh\u0027 is initialized sa nullptr.\\n\\nIt had been fixed by commit 3b3fd068c56e3fbea30090859216a368398e39bf\\n(\\\"rose: Fix Null pointer dereference in rose_send_frame()\\\") ever.\\nBut it\u0027s introduced by commit 3c53cd65dece47dd1f9d3a809f32e59d1d87b2b8\\n(\\\"rose: check NULL rose_loopback_neigh-\u003eloopback\\\") again.\\n\\nWe fix it by add NULL check in rose_transmit_clear_request(). When\\nthe \u0027dev\u0027 in \u0027neigh\u0027 is NULL, we don\u0027t reply the request and just\\nclear it.\\n\\nsyzkaller don\u0027t provide repro, and I provide a syz repro like:\\nr0 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)\\nioctl$sock_inet_SIOCSIFFLAGS(r0, 0x8914, \u0026(0x7f0000000180)={\u0027rose0\\\\x00\u0027, 0x201})\\nr1 = syz_init_net_socket$rose(0xb, 0x5, 0x0)\\nbind$rose(r1, \u0026(0x7f00000000c0)=@full={0xb, @dev, @null, 0x0, [@null, @null, @netrom, @netrom, @default, @null]}, 0x40)\\nconnect$rose(r1, \u0026(0x7f0000000240)=@short={0xb, @dev={0xbb, 0xbb, 0xbb, 0x1, 0x0}, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x1}, 0x1, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}}, 0x1c)\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: rose: Se corrige la desreferencia del puntero NULL en rose_send_frame() Syzkaller inform\u00f3 un problema: KASAN: null-ptr-deref en el rango [0x0000000000000380-0x0000000000000387] CPU: 0 PID: 4069 Comm: kworker/0:15 No contaminado 6.0.0-syzkaller-02734-g0326074ff465 #0 Nombre del hardware: Google Google Compute Engine/Google Compute Engine, BIOS Google 22/09/2022 Cola de trabajo: rcu_gp srcu_invoke_callbacks RIP: 0010:rose_send_frame+0x1dd/0x2f0 net/rose/rose_link.c:101 Rastreo de llamadas:  rose_transmit_clear_request+0x1d5/0x290 net/rose/rose_link.c:255 rose_rx_call_request+0x4c0/0x1bc0 net/rose/af_rose.c:1009 rose_loopback_timer+0x19e/0x590 net/rose/rose_loopback.c:111 call_timer_fn+0x1a0/0x6b0 kernel/time/timer.c:1474 expire_timers kernel/time/timer.c:1519 [en l\u00ednea] __run_timers.part.0+0x674/0xa80 kernel/time/timer.c:1790 __run_timers kernel/time/timer.c:1768 [en l\u00ednea] run_timer_softirq+0xb3/0x1d0 kernel/time/timer.c:1803 __do_softirq+0x1d0/0x9c8 kernel/softirq.c:571 [...]  Activa la desreferencia de puntero nulo cuando se llama a \u0027neigh-\u0026gt;dev-\u0026gt;dev_addr\u0027 en rose_send_frame(). Es la primera vez que `neigh` aparece en rose_loopback_timer() como `rose_loopback_neigh\u0027, y `dev\u0027 en `rose_loopback_neigh\u0027 se inicializa como nullptr. Se corrigi\u00f3 con el commit 3b3fd068c56e3fbea30090859216a368398e39bf (\\\"rose: Corregir la desreferencia de puntero nulo en rose_send_frame()\\\"). Pero esto se introduce de nuevo con el commit 3c53cd65dece47dd1f9d3a809f32e59d1d87b2b8 (\\\"rose: check NULL rose_loopback_neigh-\u0026gt;loopback\\\"). Lo solucionamos a\u00f1adiendo una comprobaci\u00f3n NULL en rose_transmit_clear_request(). Cuando el valor de \\\"dev\\\" en \\\"neigh\\\" es NULL, no respondemos a la solicitud y simplemente la borramos. syzkaller no proporciona reproducci\u00f3n, y yo proporciono una reproducci\u00f3n syz como: r0 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2) ioctl$sock_inet_SIOCSIFFLAGS(r0, 0x8914, \u0026amp;(0x7f0000000180)={\u0027rose0\\\\x00\u0027, 0x201}) r1 = syz_init_net_socket$rose(0xb, 0x5, 0x0) bind$rose(r1, \u0026amp;(0x7f00000000c0)=@full={0xb, @dev, @null, 0x0, [@null, @null, @netrom, @netrom, @default, @null]}, 0x40) conectar$rosa(r1, \u0026amp;(0x7f0000000240)=@corto={0xb, @dev={0xbb, 0xbb, 0xbb, 0x1, 0x0}, @remoto={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x1}, 0x1, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}}, 0x1c)\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6},{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-476\"}]},{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-476\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.9.327\",\"versionEndExcluding\":\"4.9.333\",\"matchCriteriaId\":\"31F61179-4732-41F1-A11D-6888D0B5A9E9\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.14.292\",\"versionEndExcluding\":\"4.14.299\",\"matchCriteriaId\":\"ACF1943E-656C-440D-81D9-3F3FA23D23B2\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.19.257\",\"versionEndExcluding\":\"4.19.265\",\"matchCriteriaId\":\"D2847A4B-743C-483A-AFAA-5F8246CB36C0\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.4.212\",\"versionEndExcluding\":\"5.4.224\",\"matchCriteriaId\":\"4E471077-A8B4-46CA-B708-055F12D45483\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.10.140\",\"versionEndExcluding\":\"5.10.154\",\"matchCriteriaId\":\"E598301C-2E9F-4209-93F0-9A4BDA889078\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.15.64\",\"versionEndExcluding\":\"5.15.78\",\"matchCriteriaId\":\"94A75C9E-35AD-489C-BD91-6888509DC1DE\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.19.6\",\"versionEndExcluding\":\"6.0.8\",\"matchCriteriaId\":\"992D506B-5819-4016-814E-981BC909AFA5\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.1:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"E7E331DA-1FB0-4DEC-91AC-7DA69D461C11\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.1:rc2:*:*:*:*:*:*\",\"matchCriteriaId\":\"17F0B248-42CF-4AE6-A469-BB1BAE7F4705\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.1:rc3:*:*:*:*:*:*\",\"matchCriteriaId\":\"E2422816-0C14-4B5E-A1E6-A9D776E5C49B\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/01b9c68c121847d05a4ccef68244dadf82bfa331\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/3e2129c67daca21043a26575108f6286c85e71f6\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/5b46adfbee1e429f33b10a88d6c00fa88f3d6c77\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/a601e5eded33bb88b8a42743db8fef3ad41dd97e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/b13be5e852b03f376058027e462fad4230240891\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/bbc03d74e641e824754443b908454ca9e203773e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/e97c089d7a49f67027395ddf70bf327eeac2611e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/f06186e5271b980bac03f5c97276ed0146ddc9b0\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}",
    "vulnrichment": {
      "containers": "{\"cna\": {\"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-05-04T12:45:26.225Z\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nrose: Fix NULL pointer dereference in rose_send_frame()\\n\\nThe syzkaller reported an issue:\\n\\nKASAN: null-ptr-deref in range [0x0000000000000380-0x0000000000000387]\\nCPU: 0 PID: 4069 Comm: kworker/0:15 Not tainted 6.0.0-syzkaller-02734-g0326074ff465 #0\\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022\\nWorkqueue: rcu_gp srcu_invoke_callbacks\\nRIP: 0010:rose_send_frame+0x1dd/0x2f0 net/rose/rose_link.c:101\\nCall Trace:\\n \u003cIRQ\u003e\\n rose_transmit_clear_request+0x1d5/0x290 net/rose/rose_link.c:255\\n rose_rx_call_request+0x4c0/0x1bc0 net/rose/af_rose.c:1009\\n rose_loopback_timer+0x19e/0x590 net/rose/rose_loopback.c:111\\n call_timer_fn+0x1a0/0x6b0 kernel/time/timer.c:1474\\n expire_timers kernel/time/timer.c:1519 [inline]\\n __run_timers.part.0+0x674/0xa80 kernel/time/timer.c:1790\\n __run_timers kernel/time/timer.c:1768 [inline]\\n run_timer_softirq+0xb3/0x1d0 kernel/time/timer.c:1803\\n __do_softirq+0x1d0/0x9c8 kernel/softirq.c:571\\n [...]\\n \u003c/IRQ\u003e\\n\\nIt triggers NULL pointer dereference when \u0027neigh-\u003edev-\u003edev_addr\u0027 is\\ncalled in the rose_send_frame(). It\u0027s the first occurrence of the\\n`neigh` is in rose_loopback_timer() as `rose_loopback_neigh\u0027, and\\nthe \u0027dev\u0027 in \u0027rose_loopback_neigh\u0027 is initialized sa nullptr.\\n\\nIt had been fixed by commit 3b3fd068c56e3fbea30090859216a368398e39bf\\n(\\\"rose: Fix Null pointer dereference in rose_send_frame()\\\") ever.\\nBut it\u0027s introduced by commit 3c53cd65dece47dd1f9d3a809f32e59d1d87b2b8\\n(\\\"rose: check NULL rose_loopback_neigh-\u003eloopback\\\") again.\\n\\nWe fix it by add NULL check in rose_transmit_clear_request(). When\\nthe \u0027dev\u0027 in \u0027neigh\u0027 is NULL, we don\u0027t reply the request and just\\nclear it.\\n\\nsyzkaller don\u0027t provide repro, and I provide a syz repro like:\\nr0 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)\\nioctl$sock_inet_SIOCSIFFLAGS(r0, 0x8914, \u0026(0x7f0000000180)={\u0027rose0\\\\x00\u0027, 0x201})\\nr1 = syz_init_net_socket$rose(0xb, 0x5, 0x0)\\nbind$rose(r1, \u0026(0x7f00000000c0)=@full={0xb, @dev, @null, 0x0, [@null, @null, @netrom, @netrom, @default, @null]}, 0x40)\\nconnect$rose(r1, \u0026(0x7f0000000240)=@short={0xb, @dev={0xbb, 0xbb, 0xbb, 0x1, 0x0}, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x1}, 0x1, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}}, 0x1c)\"}], \"affected\": [{\"product\": \"Linux\", \"vendor\": \"Linux\", \"defaultStatus\": \"unaffected\", \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"programFiles\": [\"net/rose/rose_link.c\"], \"versions\": [{\"version\": \"76885373129b13df35ecc9b4ee86ea5840f12133\", \"lessThan\": \"01b9c68c121847d05a4ccef68244dadf82bfa331\", \"status\": \"affected\", \"versionType\": \"git\"}, {\"version\": \"b8f9de195d6303f52bae16c7911f35ac14ba7e3d\", \"lessThan\": \"bbc03d74e641e824754443b908454ca9e203773e\", \"status\": \"affected\", \"versionType\": \"git\"}, {\"version\": \"0aae33feb7a56b28318f92c960a3d08d9c305984\", \"lessThan\": \"5b46adfbee1e429f33b10a88d6c00fa88f3d6c77\", \"status\": \"affected\", \"versionType\": \"git\"}, {\"version\": \"6e4b20d548fc97ecbdca15c8d96302ee5e3e6313\", \"lessThan\": \"b13be5e852b03f376058027e462fad4230240891\", \"status\": \"affected\", \"versionType\": \"git\"}, {\"version\": \"de3deadd11987070788b48825bec4647458b988d\", \"lessThan\": \"f06186e5271b980bac03f5c97276ed0146ddc9b0\", \"status\": \"affected\", \"versionType\": \"git\"}, {\"version\": \"9cf85759e104d7e9c3fd8920a554195b715d6797\", \"lessThan\": \"3e2129c67daca21043a26575108f6286c85e71f6\", \"status\": \"affected\", \"versionType\": \"git\"}, {\"version\": \"3c53cd65dece47dd1f9d3a809f32e59d1d87b2b8\", \"lessThan\": \"a601e5eded33bb88b8a42743db8fef3ad41dd97e\", \"status\": \"affected\", \"versionType\": \"git\"}, {\"version\": \"3c53cd65dece47dd1f9d3a809f32e59d1d87b2b8\", \"lessThan\": \"e97c089d7a49f67027395ddf70bf327eeac2611e\", \"status\": \"affected\", \"versionType\": \"git\"}, {\"version\": \"9197ca40fd9de265caedba70d0cb5814c4e45952\", \"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/rose/rose_link.c\"], \"versions\": [{\"version\": \"6.0\", \"status\": \"affected\"}, {\"version\": \"0\", \"lessThan\": \"6.0\", \"status\": \"unaffected\", \"versionType\": \"semver\"}, {\"version\": \"4.9.333\", \"lessThanOrEqual\": \"4.9.*\", \"status\": \"unaffected\", \"versionType\": \"semver\"}, {\"version\": \"4.14.299\", \"lessThanOrEqual\": \"4.14.*\", \"status\": \"unaffected\", \"versionType\": \"semver\"}, {\"version\": \"4.19.265\", \"lessThanOrEqual\": \"4.19.*\", \"status\": \"unaffected\", \"versionType\": \"semver\"}, {\"version\": \"5.4.224\", \"lessThanOrEqual\": \"5.4.*\", \"status\": \"unaffected\", \"versionType\": \"semver\"}, {\"version\": \"5.10.154\", \"lessThanOrEqual\": \"5.10.*\", \"status\": \"unaffected\", \"versionType\": \"semver\"}, {\"version\": \"5.15.78\", \"lessThanOrEqual\": \"5.15.*\", \"status\": \"unaffected\", \"versionType\": \"semver\"}, {\"version\": \"6.0.8\", \"lessThanOrEqual\": \"6.0.*\", \"status\": \"unaffected\", \"versionType\": \"semver\"}, {\"version\": \"6.1\", \"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\": \"4.9.327\", \"versionEndExcluding\": \"4.9.333\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"4.14.292\", \"versionEndExcluding\": \"4.14.299\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"4.19.257\", \"versionEndExcluding\": \"4.19.265\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"5.4.212\", \"versionEndExcluding\": \"5.4.224\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"5.10.140\", \"versionEndExcluding\": \"5.10.154\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"5.15.64\", \"versionEndExcluding\": \"5.15.78\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"6.0\", \"versionEndExcluding\": \"6.0.8\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"6.0\", \"versionEndExcluding\": \"6.1\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"5.19.6\"}]}]}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/01b9c68c121847d05a4ccef68244dadf82bfa331\"}, {\"url\": \"https://git.kernel.org/stable/c/bbc03d74e641e824754443b908454ca9e203773e\"}, {\"url\": \"https://git.kernel.org/stable/c/5b46adfbee1e429f33b10a88d6c00fa88f3d6c77\"}, {\"url\": \"https://git.kernel.org/stable/c/b13be5e852b03f376058027e462fad4230240891\"}, {\"url\": \"https://git.kernel.org/stable/c/f06186e5271b980bac03f5c97276ed0146ddc9b0\"}, {\"url\": \"https://git.kernel.org/stable/c/3e2129c67daca21043a26575108f6286c85e71f6\"}, {\"url\": \"https://git.kernel.org/stable/c/a601e5eded33bb88b8a42743db8fef3ad41dd97e\"}, {\"url\": \"https://git.kernel.org/stable/c/e97c089d7a49f67027395ddf70bf327eeac2611e\"}], \"title\": \"rose: Fix NULL pointer dereference in rose_send_frame()\", \"x_generator\": {\"engine\": \"bippy-1.2.0\"}}, \"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 5.5, \"attackVector\": \"LOCAL\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\", \"integrityImpact\": \"NONE\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"LOW\", \"confidentialityImpact\": \"NONE\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2022-49916\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2025-10-01T16:00:00.455092Z\"}}}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-476\", \"description\": \"CWE-476 NULL Pointer Dereference\"}]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2025-10-01T14:19:29.505Z\"}}]}",
      "cveMetadata": "{\"cveId\": \"CVE-2022-49916\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"state\": \"PUBLISHED\", \"assignerShortName\": \"Linux\", \"dateReserved\": \"2025-05-01T14:05:17.251Z\", \"datePublished\": \"2025-05-01T14:10:56.851Z\", \"dateUpdated\": \"2025-10-01T16:00:19.393Z\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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