CVE-2024-26739
Vulnerability from cvelistv5
Published
2024-04-03 17:00
Modified
2024-11-05 09:14
Severity ?
Summary
net/sched: act_mirred: don't override retval if we already lost the skb
Impacted products
LinuxLinux
LinuxLinux
Show details on NVD website


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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/sched: act_mirred: don\u0027t override retval if we already lost the skb\n\nIf we\u0027re redirecting the skb, and haven\u0027t called tcf_mirred_forward(),\nyet, we need to tell the core to drop the skb by setting the retcode\nto SHOT. If we have called tcf_mirred_forward(), however, the skb\nis out of our hands and returning SHOT will lead to UaF.\n\nMove the retval override to the error path which actually need it."
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    "dateReserved": "2024-02-19T14:20:24.166Z",
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    "nvd": "{\"cve\":{\"id\":\"CVE-2024-26739\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-04-03T17:15:51.367\",\"lastModified\":\"2024-04-03T17:24:18.150\",\"vulnStatus\":\"Awaiting Analysis\",\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnet/sched: act_mirred: don\u0027t override retval if we already lost the skb\\n\\nIf we\u0027re redirecting the skb, and haven\u0027t called tcf_mirred_forward(),\\nyet, we need to tell the core to drop the skb by setting the retcode\\nto SHOT. If we have called tcf_mirred_forward(), however, the skb\\nis out of our hands and returning SHOT will lead to UaF.\\n\\nMove the retval override to the error path which actually need it.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net/sched: act_mirred: no anula retval si ya perdimos el skb. Si estamos redirigiendo el skb y a\u00fan no hemos llamado a tcf_mirred_forward(), necesitamos para decirle al n\u00facleo que suelte el skb configurando el c\u00f3digo de retecci\u00f3n en SHOT. Sin embargo, si hemos llamado a tcf_mirred_forward(), el skb est\u00e1 fuera de nuestras manos y devolver SHOT conducir\u00e1 a UaF. Mueva la anulaci\u00f3n de recuperaci\u00f3n a la ruta de error que realmente la necesita.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/166c2c8a6a4dc2e4ceba9e10cfe81c3e469e3210\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/28cdbbd38a4413b8eff53399b3f872fd4e80db9d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/f4e294bbdca8ac8757db436fc82214f3882fc7e7\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
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  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
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