diff for duplicates of <87lfb1gxq3.fsf@keithp.com> diff --git a/a/content_digest b/N1/content_digest index 1a793ec..3d54cbb 100644 --- a/a/content_digest +++ b/N1/content_digest @@ -1,6 +1,6 @@ "ref\020210305135451.15427-1-alex.bennee@linaro.org\0" "ref\020210305135451.15427-4-alex.bennee@linaro.org\0" - "From\0Keith Packard <keithp@keithp.com>\0" + "From\0Keith Packard via <qemu-devel@nongnu.org>\0" "Subject\0Re: [PATCH v1 3/3] semihosting/arg-compat: fix up handling of SYS_HEAPINFO\0" "Date\0Fri, 05 Mar 2021 12:19:16 -0800\0" "To\0Alex Benn\303\251e <alex.bennee@linaro.org>" @@ -46,4 +46,4 @@ "=GQC+\n" -----END PGP SIGNATURE----- -670e91f4d2131453101d9e34399a1e9725f3429c2527f9c45289b15f742e1572 +1cf4a9eaa81d6c5987b09515e2ee3c83ab0ae31f2e0c1041052d32e6610e0fe5
diff --git a/a/1.txt b/N2/1.txt index 7be6321..2933989 100644 --- a/a/1.txt +++ b/N2/1.txt @@ -13,3 +13,43 @@ whatever bugs you've found. -- -keith + +-- +You received this bug notification because you are a member of qemu- +devel-ml, which is subscribed to QEMU. +https://bugs.launchpad.net/bugs/1915925 + +Title: + ARM semihosting HEAPINFO results wrote to wrong address + +Status in QEMU: + Confirmed + +Bug description: + This affects latest development branch of QEMU. + + According to the ARM spec of the HEAPINFO semihosting call: + + https://developer.arm.com/documentation/100863/0300/Semihosting- + operations/SYS-HEAPINFO--0x16-?lang=en + + > the PARAMETER REGISTER contains the address of a pointer to a four- + field data block. + + However, QEMU treated the PARAMETER REGISTER as pointing to a four- + field data block directly. + + Here is a simple program that can demonstrate this problem: + https://github.com/iNvEr7/qemu-learn/tree/newlib-bug/semihosting- + newlib + + This code links with newlib with semihosting mode, which will call the + HEAPINFO SVC during crt0 routine. When running in QEMU (make run), it + may crash the program either because of invalid write or memory + curruption, depending on the compiled program structure. + + Also refer to my discussion with newlib folks: + https://sourceware.org/pipermail/newlib/2021/018260.html + +To manage notifications about this bug go to: +https://bugs.launchpad.net/qemu/+bug/1915925/+subscriptions diff --git a/a/2.bin b/a/2.bin deleted file mode 100644 index dd37890..0000000 --- a/a/2.bin +++ /dev/null @@ -1,16 +0,0 @@ ------BEGIN PGP SIGNATURE----- - -iQIzBAEBCAAdFiEEw4O3eCVWE9/bQJ2R2yIaaQAAABEFAmBCkkQACgkQ2yIaaQAA -ABH2vQ/9Hns9A12xQi4WE/5uRF4/KHbPczlCwwrrmCIYkllMzNQ9AtlXLSZZIDgD -dBro2yHjBzYWY0WkmgQS5qrsPSAfseWdRTmKukSHJWhxK5sSN8TMe/NvnQ2nN86Y -cCm9QHam716TF+b5mZgQjqTm4RdwHo6RWFhnlxj7M+FfUAKsLo5o9rD0+CL+WHW6 -rJycd0X45M7FXVUQqfpZnbmKVzW7wFUeE4PEpIDZvtwU2KOLurYKyIXb+T6xVMdh -qgG9kaEJbYRrrKJXom62yaX+lD+/zwpuU9GUiQ73zrs2oYk+wo0XLXefW7wSDLgy -8HlIHmhplruKQJu3ly0vbqzO7o5QSGvRjsjfvKFe2DrOR5KXBH5bcGRjQ/6Xv7M2 -BFh5fjkSs1fcN/LVlxZfug8xP7rsEjsjBfH8FV4j9gOp/qmMdVcWWAl/znuAJUoH -pNnVSsFQ5wVlpTRiYPplDQuzveiUBSXFfcLVnB+SgIIX4COmsI07bj+Z0exRQOqR -UUnVkgG8OUu4u877DOPWJf9v/ly9kkmwJMaJ9VPnvcioJQcxsosHCQgFN3KwI+wb -QUgUrQ0ZrR/stzzqlWjHdBPJNFYt/m0JXguKkHvzSMXYzfaf4LR3h1o6uk+q1xA6 -vhYNON0fZ5QJPWGVBk0U+d9LLJxCNsUBOWX+L3ZpGL9yglVvdO4= -=GQC+ ------END PGP SIGNATURE----- diff --git a/a/2.hdr b/a/2.hdr deleted file mode 100644 index 5e5352c..0000000 --- a/a/2.hdr +++ /dev/null @@ -1 +0,0 @@ -Content-Type: application/pgp-signature; name="signature.asc" diff --git a/a/content_digest b/N2/content_digest index 1a793ec..0b0439b 100644 --- a/a/content_digest +++ b/N2/content_digest @@ -1,15 +1,10 @@ - "ref\020210305135451.15427-1-alex.bennee@linaro.org\0" + "ref\0161356438332.24036.4652954745285513495.malonedeb@chaenomeles.canonical.com\0" "ref\020210305135451.15427-4-alex.bennee@linaro.org\0" - "From\0Keith Packard <keithp@keithp.com>\0" - "Subject\0Re: [PATCH v1 3/3] semihosting/arg-compat: fix up handling of SYS_HEAPINFO\0" - "Date\0Fri, 05 Mar 2021 12:19:16 -0800\0" - "To\0Alex Benn\303\251e <alex.bennee@linaro.org>" - " qemu-devel@nongnu.org\0" - "Cc\0Alex Benn\303\251e <alex.bennee@linaro.org>" - Bug 1915925 <1915925@bugs.launchpad.net> - Peter Maydell <peter.maydell@linaro.org> - " open list:ARM TCG CPUs <qemu-arm@nongnu.org>\0" - "\01:1\0" + "From\0Keith Packard <1915925@bugs.launchpad.net>\0" + "Subject\0[Bug 1915925] Re: [PATCH v1 3/3] semihosting/arg-compat: fix up handling of SYS_HEAPINFO\0" + "Date\0Fri, 05 Mar 2021 20:19:16 -0000\0" + "To\0qemu-devel@nongnu.org\0" + "\00:1\0" "b\0" "Alex Benn\303\251e <alex.bennee@linaro.org> writes:\n" "\n" @@ -25,25 +20,46 @@ "whatever bugs you've found.\n" "\n" "-- \n" - -keith - "\01:2\0" - "fn\0signature.asc\0" - "b\0" - "-----BEGIN PGP SIGNATURE-----\n" - "\n" - "iQIzBAEBCAAdFiEEw4O3eCVWE9/bQJ2R2yIaaQAAABEFAmBCkkQACgkQ2yIaaQAA\n" - "ABH2vQ/9Hns9A12xQi4WE/5uRF4/KHbPczlCwwrrmCIYkllMzNQ9AtlXLSZZIDgD\n" - "dBro2yHjBzYWY0WkmgQS5qrsPSAfseWdRTmKukSHJWhxK5sSN8TMe/NvnQ2nN86Y\n" - "cCm9QHam716TF+b5mZgQjqTm4RdwHo6RWFhnlxj7M+FfUAKsLo5o9rD0+CL+WHW6\n" - "rJycd0X45M7FXVUQqfpZnbmKVzW7wFUeE4PEpIDZvtwU2KOLurYKyIXb+T6xVMdh\n" - "qgG9kaEJbYRrrKJXom62yaX+lD+/zwpuU9GUiQ73zrs2oYk+wo0XLXefW7wSDLgy\n" - "8HlIHmhplruKQJu3ly0vbqzO7o5QSGvRjsjfvKFe2DrOR5KXBH5bcGRjQ/6Xv7M2\n" - "BFh5fjkSs1fcN/LVlxZfug8xP7rsEjsjBfH8FV4j9gOp/qmMdVcWWAl/znuAJUoH\n" - "pNnVSsFQ5wVlpTRiYPplDQuzveiUBSXFfcLVnB+SgIIX4COmsI07bj+Z0exRQOqR\n" - "UUnVkgG8OUu4u877DOPWJf9v/ly9kkmwJMaJ9VPnvcioJQcxsosHCQgFN3KwI+wb\n" - "QUgUrQ0ZrR/stzzqlWjHdBPJNFYt/m0JXguKkHvzSMXYzfaf4LR3h1o6uk+q1xA6\n" - "vhYNON0fZ5QJPWGVBk0U+d9LLJxCNsUBOWX+L3ZpGL9yglVvdO4=\n" - "=GQC+\n" - -----END PGP SIGNATURE----- + "-keith\n" + "\n" + "-- \n" + "You received this bug notification because you are a member of qemu-\n" + "devel-ml, which is subscribed to QEMU.\n" + "https://bugs.launchpad.net/bugs/1915925\n" + "\n" + "Title:\n" + " ARM semihosting HEAPINFO results wrote to wrong address\n" + "\n" + "Status in QEMU:\n" + " Confirmed\n" + "\n" + "Bug description:\n" + " This affects latest development branch of QEMU.\n" + "\n" + " According to the ARM spec of the HEAPINFO semihosting call:\n" + "\n" + " https://developer.arm.com/documentation/100863/0300/Semihosting-\n" + " operations/SYS-HEAPINFO--0x16-?lang=en\n" + "\n" + " > the PARAMETER REGISTER contains the address of a pointer to a four-\n" + " field data block.\n" + "\n" + " However, QEMU treated the PARAMETER REGISTER as pointing to a four-\n" + " field data block directly.\n" + "\n" + " Here is a simple program that can demonstrate this problem:\n" + " https://github.com/iNvEr7/qemu-learn/tree/newlib-bug/semihosting-\n" + " newlib\n" + "\n" + " This code links with newlib with semihosting mode, which will call the\n" + " HEAPINFO SVC during crt0 routine. When running in QEMU (make run), it\n" + " may crash the program either because of invalid write or memory\n" + " curruption, depending on the compiled program structure.\n" + "\n" + " Also refer to my discussion with newlib folks:\n" + " https://sourceware.org/pipermail/newlib/2021/018260.html\n" + "\n" + "To manage notifications about this bug go to:\n" + https://bugs.launchpad.net/qemu/+bug/1915925/+subscriptions -670e91f4d2131453101d9e34399a1e9725f3429c2527f9c45289b15f742e1572 +744676921f1280b296a82e3752408c8dad507ba87bef570cf10a80e790f9c3a6
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