diff for duplicates of <87im65gxla.fsf@keithp.com> diff --git a/a/content_digest b/N1/content_digest index 519e19b..5600412 100644 --- a/a/content_digest +++ b/N1/content_digest @@ -1,7 +1,7 @@ "ref\020210305135451.15427-1-alex.bennee@linaro.org\0" "ref\020210305135451.15427-4-alex.bennee@linaro.org\0" "ref\0CAFEAcA9LdZ=Ym_UQFwqMcrHv6pygdxZC+fgoc=N3mU484d-a_A@mail.gmail.com\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 12:22:09 -0800\0" "To\0Peter Maydell <peter.maydell@linaro.org>" @@ -42,4 +42,4 @@ "=PmUx\n" -----END PGP SIGNATURE----- -c456de8b7178fe93bb93eb735357349e56cb21d0c8ca5b8b5e0a31e69caad986 +9ed0e4607c7f741b9e072374e75c0b2f75aa7f48091fb4915e1c67fe81eabd6a
diff --git a/a/1.txt b/N2/1.txt index f9cdd57..d31a2f1 100644 --- a/a/1.txt +++ b/N2/1.txt @@ -9,3 +9,43 @@ or whether an aarch64 is running a 32-bit ABI? -- -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 f28160c..0000000 --- a/a/2.bin +++ /dev/null @@ -1,16 +0,0 @@ ------BEGIN PGP SIGNATURE----- - -iQIzBAEBCAAdFiEEw4O3eCVWE9/bQJ2R2yIaaQAAABEFAmBCkvIACgkQ2yIaaQAA -ABEd/g/+O+tWkZiYe6wLv+EJByIAwxVAQWLgzjF5jXa6TkcmyFKHj1NqpzFZTL9e -6DhGN9UOOQTw7YYjFZu/s9QDDkdXV4k5BX+ELDAWuTVdGM4tAWnakrrX+dNCmCuB -d6GEaehzDdB1Mu8KJyyKkMSFKSXV35X6fc7Mo1teqfa+cqLYPHwToreTzDpwt2MI -XFFv/Ud8NAJSncfDyvdOaDXzWU4k22uOZ9EjAkrMO/7q2ii/aSDo5x9s4LHnF58n -v1p+JhwiM/F9xkugkIh99r5OiYIP8K13MlS6VZONE/y89iNdhokG/BfKLjo9XHIu -H/GqeGoo39dr4zEnWo9C/rZ+HVjjxHHh4aGOT37UM3tMoumGL1mVXCHKNXt9if07 -0KuC6tvJQpKyAcbUobLLqKxKmZWRt/+AbYBwLN0L9PRINAqjHmPkj7EUw0V0okqa -M8e4TPf13PmpmeOk1WPc39B4jdnzO4+7jkcqIHd1RSKWTH2P/tlKQC9Y4y2ypEDb -fhgCELRRKFZT7d7TCtVSHO/yYMdHuY7AmIVlb8PouGYYIVKvnrDB5t4wVGuzClcv -sf9Fn+yBUtG+MYr+KIgN1d9ZZaLFCHbBT44ZHmBQghHjvcTCa7bnttzOlph3AqPr -1WktDOc3MKFD/dTW+RInYoscou9zQZMXBttHSc57fN9Qo0Ke0Sc= -=PmUx ------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 519e19b..a42c529 100644 --- a/a/content_digest +++ b/N2/content_digest @@ -1,15 +1,11 @@ - "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" "ref\0CAFEAcA9LdZ=Ym_UQFwqMcrHv6pygdxZC+fgoc=N3mU484d-a_A@mail.gmail.com\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 12:22:09 -0800\0" - "To\0Peter Maydell <peter.maydell@linaro.org>" - " Alex Benn\303\251e <alex.bennee@linaro.org>\0" - "Cc\0QEMU Developers <qemu-devel@nongnu.org>" - Bug 1915925 <1915925@bugs.launchpad.net> - " 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 20:22:09 -0000\0" + "To\0qemu-devel@nongnu.org\0" + "\00:1\0" "b\0" "Peter Maydell <peter.maydell@linaro.org> writes:\n" "\n" @@ -21,25 +17,46 @@ "or whether an aarch64 is running a 32-bit ABI?\n" "\n" "-- \n" - -keith - "\01:2\0" - "fn\0signature.asc\0" - "b\0" - "-----BEGIN PGP SIGNATURE-----\n" - "\n" - "iQIzBAEBCAAdFiEEw4O3eCVWE9/bQJ2R2yIaaQAAABEFAmBCkvIACgkQ2yIaaQAA\n" - "ABEd/g/+O+tWkZiYe6wLv+EJByIAwxVAQWLgzjF5jXa6TkcmyFKHj1NqpzFZTL9e\n" - "6DhGN9UOOQTw7YYjFZu/s9QDDkdXV4k5BX+ELDAWuTVdGM4tAWnakrrX+dNCmCuB\n" - "d6GEaehzDdB1Mu8KJyyKkMSFKSXV35X6fc7Mo1teqfa+cqLYPHwToreTzDpwt2MI\n" - "XFFv/Ud8NAJSncfDyvdOaDXzWU4k22uOZ9EjAkrMO/7q2ii/aSDo5x9s4LHnF58n\n" - "v1p+JhwiM/F9xkugkIh99r5OiYIP8K13MlS6VZONE/y89iNdhokG/BfKLjo9XHIu\n" - "H/GqeGoo39dr4zEnWo9C/rZ+HVjjxHHh4aGOT37UM3tMoumGL1mVXCHKNXt9if07\n" - "0KuC6tvJQpKyAcbUobLLqKxKmZWRt/+AbYBwLN0L9PRINAqjHmPkj7EUw0V0okqa\n" - "M8e4TPf13PmpmeOk1WPc39B4jdnzO4+7jkcqIHd1RSKWTH2P/tlKQC9Y4y2ypEDb\n" - "fhgCELRRKFZT7d7TCtVSHO/yYMdHuY7AmIVlb8PouGYYIVKvnrDB5t4wVGuzClcv\n" - "sf9Fn+yBUtG+MYr+KIgN1d9ZZaLFCHbBT44ZHmBQghHjvcTCa7bnttzOlph3AqPr\n" - "1WktDOc3MKFD/dTW+RInYoscou9zQZMXBttHSc57fN9Qo0Ke0Sc=\n" - "=PmUx\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 -c456de8b7178fe93bb93eb735357349e56cb21d0c8ca5b8b5e0a31e69caad986 +725dd441c6e39469ad30053b9dd8fb758d0157f0129369b4f65995b00dcaedef
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