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SUSE-SU-2026:21354-1 Not scored

Security update for qemu

This update for qemu fixes the following issues: Update to version 10.0.9. Security issues fixed: - CVE-2026-3196: unbounded memory allocation and host denial-of-service via PCM_INFO requests sent from the guest (bsc#1259079). - CVE-2026-3195: heap out-of-bounds write when reading input audio in the virtio-snd device input callback (bsc#1259080). - CVE-2026-2243: heap out-of-bounds read and 12-byte information leak when processing specially crafted VMDK files with qemu-img (bsc#1258509). Other updates and bugfixes: - Version 10.0.9: * Full backport list: https://lore.kernel.org/qemu-devel/[email protected]/ * hyperv/syndbg: check length returned by cpu_physical_memory_map() * fuse: Copy write buffer content before polling * target/loongarch: Avoid recursive PNX exception on CSR_BADI fetch * target/loongarch: Preserve PTE permission bits in LDPTE * hw/net/npcm_gmac: Catch accesses off the end of the register array * linux-user: fix TIOCGSID ioctl * tests/tcg/multiarch/test-mmap: Check mmaps beyond reserved_va * bsd-user: Deal with mmap where start > reserved_va * linux-user: Deal with mmap where start > reserved_va * hw/net/xilinx_ethlite: Check for oversized TX packets * virtio-gpu: Ensure BHs are invoked only from main-loop thread * block/nfs: Do not enter coroutine from CB * block: Never drop BLOCK_IO_ERROR with action=stop for rate limiting * block/throttle-groups: fix deadlock with iolimits and muliple iothreads * mirror: Fix missed dirty bitmap writes during startup * block/curl: fix concurrent completion handling * block/vmdk: fix OOB read in vmdk_read_extent() * hw/net/smc91c111: Don't allow negative-length packets * io: fix cleanup for websock I/O source data on cancellation * io: fix cleanup for TLS I/O source data on cancellation * io: separate freeing of tasks from marking them as complete * target/i386/hvf/x86_mmu: Fix compiler warning * hw/i386/vmmouse: Fix hypercall clobbers * tests/docker: upgrade most non-lcitool debian tests to debian 13 * hw/9pfs: fix missing EOPNOTSUPP on Twstat and Trenameat for fs synth driver * hw/9pfs: fix data race in v9fs_mark_fids_unreclaim() - Add support for AMD-Turn CPUs (jsc#PED-13174) * target/i386: Add support for EPYC-Turin model (jsc#PED-13174) * target/i386: Update EPYC-Genoa for Cache property, perfmon-v2, RAS and SVM feature bits (jsc#PED-13174) * target/i386: Add couple of feature bits in CPUID_Fn80000021_EAX (jsc#PED-13174) * target/i386: Update EPYC-Milan CPU model for Cache property, RAS, SVM feature bits (jsc#PED-13174) * target/i386: Update EPYC-Rome CPU model for Cache property, RAS, SVM feature bits (jsc#PED-13174) * target/i386: Update EPYC CPU model for Cache property, RAS, SVM feature bits (jsc#PED-13174)

Exploit probability Not scored
Published April 20, 2026
Required by Not available
Last source change April 29, 2026

03 / CONNECTIONS

Connected vulnerabilities

04 / EVIDENCE

Source records

Open Source Vulnerabilities SUSE-SU-2026:21354-1

This update for qemu fixes the following issues: Update to version 10.0.9. Security issues fixed: - CVE-2026-3196: unbounded memory allocation and host denial-of-service via PCM_INFO requests sent from the guest (bsc#1259079). - CVE-2026-3195: heap out-of-bounds write when reading input audio in the virtio-snd device input callback (bsc#1259080). - CVE-2026-2243: heap out-of-bounds read and 12-byte information leak when processing specially crafted VMDK files with qemu-img (bsc#1258509). Other updates and bugfixes: - Version 10.0.9: * Full backport list: https://lore.kernel.org/qemu-devel/[email protected]/ * hyperv/syndbg: check length returned by cpu_physical_memory_map() * fuse: Copy write buffer content before polling * target/loongarch: Avoid recursive PNX exception on CSR_BADI fetch * target/loongarch: Preserve PTE permission bits in LDPTE * hw/net/npcm_gmac: Catch accesses off the end of the register array * linux-user: fix TIOCGSID ioctl * tests/tcg/multiarch/test-mmap: Check mmaps beyond reserved_va * bsd-user: Deal with mmap where start > reserved_va * linux-user: Deal with mmap where start > reserved_va * hw/net/xilinx_ethlite: Check for oversized TX packets * virtio-gpu: Ensure BHs are invoked only from main-loop thread * block/nfs: Do not enter coroutine from CB * block: Never drop BLOCK_IO_ERROR with action=stop for rate limiting * block/throttle-groups: fix deadlock with iolimits and muliple iothreads * mirror: Fix missed dirty bitmap writes during startup * block/curl: fix concurrent completion handling * block/vmdk: fix OOB read in vmdk_read_extent() * hw/net/smc91c111: Don't allow negative-length packets * io: fix cleanup for websock I/O source data on cancellation * io: fix cleanup for TLS I/O source data on cancellation * io: separate freeing of tasks from marking them as complete * target/i386/hvf/x86_mmu: Fix compiler warning * hw/i386/vmmouse: Fix hypercall clobbers * tests/docker: upgrade most non-lcitool debian tests to debian 13 * hw/9pfs: fix missing EOPNOTSUPP on Twstat and Trenameat for fs synth driver * hw/9pfs: fix data race in v9fs_mark_fids_unreclaim() - Add support for AMD-Turn CPUs (jsc#PED-13174) * target/i386: Add support for EPYC-Turin model (jsc#PED-13174) * target/i386: Update EPYC-Genoa for Cache property, perfmon-v2, RAS and SVM feature bits (jsc#PED-13174) * target/i386: Add couple of feature bits in CPUID_Fn80000021_EAX (jsc#PED-13174) * target/i386: Update EPYC-Milan CPU model for Cache property, RAS, SVM feature bits (jsc#PED-13174) * target/i386: Update EPYC-Rome CPU model for Cache property, RAS, SVM feature bits (jsc#PED-13174) * target/i386: Update EPYC CPU model for Cache property, RAS, SVM feature bits (jsc#PED-13174)

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05 / REFERENCES

Further evidence