{"id":"DEBIAN-CVE-2021-47076","details":"In the Linux kernel, the following vulnerability has been resolved:  RDMA/rxe: Return CQE error if invalid lkey was supplied  RXE is missing update of WQE status in LOCAL_WRITE failures.  This caused the following kernel panic if someone sent an atomic operation with an explicitly wrong lkey.  [leonro@vm ~]$ mkt test test_atomic_invalid_lkey (tests.test_atomic.AtomicTest) ...  WARNING: CPU: 5 PID: 263 at drivers/infiniband/sw/rxe/rxe_comp.c:740 rxe_completer+0x1a6d/0x2e30 [rdma_rxe]  Modules linked in: crc32_generic rdma_rxe ip6_udp_tunnel udp_tunnel rdma_ucm rdma_cm ib_umad ib_ipoib iw_cm ib_cm mlx5_ib ib_uverbs ib_core mlx5_core ptp pps_core  CPU: 5 PID: 263 Comm: python3 Not tainted 5.13.0-rc1+ #2936  Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014  RIP: 0010:rxe_completer+0x1a6d/0x2e30 [rdma_rxe]  Code: 03 0f 8e 65 0e 00 00 3b 93 10 06 00 00 0f 84 82 0a 00 00 4c 89 ff 4c 89 44 24 38 e8 2d 74 a9 e1 4c 8b 44 24 38 e9 1c f5 ff ff \u003c0f\u003e 0b e9 0c e8 ff ff b8 05 00 00 00 41 bf 05 00 00 00 e9 ab e7 ff  RSP: 0018:ffff8880158af090 EFLAGS: 00010246  RAX: 0000000000000000 RBX: ffff888016a78000 RCX: ffffffffa0cf1652  RDX: 1ffff9200004b442 RSI: 0000000000000004 RDI: ffffc9000025a210  RBP: dffffc0000000000 R08: 00000000ffffffea R09: ffff88801617740b  R10: ffffed1002c2ee81 R11: 0000000000000007 R12: ffff88800f3b63e8  R13: ffff888016a78008 R14: ffffc9000025a180 R15: 000000000000000c  FS:  00007f88b622a740(0000) GS:ffff88806d540000(0000) knlGS:0000000000000000  CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033  CR2: 00007f88b5a1fa10 CR3: 000000000d848004 CR4: 0000000000370ea0  DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000  DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400  Call Trace:   rxe_do_task+0x130/0x230 [rdma_rxe]   rxe_rcv+0xb11/0x1df0 [rdma_rxe]   rxe_loopback+0x157/0x1e0 [rdma_rxe]   rxe_responder+0x5532/0x7620 [rdma_rxe]   rxe_do_task+0x130/0x230 [rdma_rxe]   rxe_rcv+0x9c8/0x1df0 [rdma_rxe]   rxe_loopback+0x157/0x1e0 [rdma_rxe]   rxe_requester+0x1efd/0x58c0 [rdma_rxe]   rxe_do_task+0x130/0x230 [rdma_rxe]   rxe_post_send+0x998/0x1860 [rdma_rxe]   ib_uverbs_post_send+0xd5f/0x1220 [ib_uverbs]   ib_uverbs_write+0x847/0xc80 [ib_uverbs]   vfs_write+0x1c5/0x840   ksys_write+0x176/0x1d0   do_syscall_64+0x3f/0x80   entry_SYSCALL_64_after_hwframe+0x44/0xae","modified":"2026-09-15T09:02:35.048087457Z","published":"2024-03-01T22:15:47.223Z","upstream":["CVE-2021-47076"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2021-47076"}],"affected":[{"package":{"name":"linux","ecosystem":"Debian:12","purl":"pkg:deb/debian/linux?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.14.6-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2021-47076.json"}},{"package":{"name":"linux","ecosystem":"Debian:13","purl":"pkg:deb/debian/linux?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.14.6-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2021-47076.json"}},{"package":{"name":"linux","ecosystem":"Debian:14","purl":"pkg:deb/debian/linux?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.14.6-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2021-47076.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}