CVE-2022-49087
published 2025-02-26CVE-2022-49087: In the Linux kernel, the following vulnerability has been resolved: rxrpc: fix a race in rxrpc_exit_net() Current code can lead to the following race: CPU0…
PriorityP339high7.8CVSS 3.1
AVLACLPRLUINSUCHIHAH
EPSS
0.25%
16.3th percentile
In the Linux kernel, the following vulnerability has been resolved:
rxrpc: fix a race in rxrpc_exit_net()
Current code can lead to the following race:
CPU0 CPU1
rxrpc_exit_net()
rxrpc_peer_keepalive_worker()
if (rxnet->live)
rxnet->live = false;
del_timer_sync(&rxnet->peer_keepalive_timer);
timer_reduce(&rxnet->peer_keepalive_timer, jiffies + delay);
cancel_work_sync(&rxnet->peer_keepalive_work);
rxrpc_exit_net() exits while peer_keepalive_timer is still armed,
leading to use-after-free.
syzbot report was:
ODEBUG: free active (active state 0) object type: timer_list hint: rxrpc_peer_keepalive_timeout+0x0/0xb0
WARNING: CPU: 0 PID: 3660 at lib/debugobjects.c:505 debug_print_object+0x16e/0x250 lib/debugobjects.c:505
Modules linked in:
CPU: 0 PID: 3660 Comm: kworker/u4:6 Not tainted 5.17.0-syzkaller-13993-g88e6c0207623 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: netns cleanup_net
RIP: 0010:debug_print_object+0x16e/0x250 lib/debugobjects.c:505
Code: ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 af 00 00 00 48 8b 14 dd 00 1c 26 8a 4c 89 ee 48 c7 c7 00 10 26 8a e8 b1 e7 28 05 0b 83 05 15 eb c5 09 01 48 83 c4 18 5b 5d 41 5c 41 5d 41 5e c3
RSP: 0018:ffffc9000353fb00 EFLAGS: 00010082
RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000000
RDX: ffff888029196140 RSI: ffffffff815efad8 RDI: fffff520006a7f52
RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff815ea4ae R11: 0000000000000000 R12: ffffffff89ce23e0
R13: ffffffff8a2614e0 R14: ffffffff816628c0 R15: dffffc0000000000
FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe1f2908924 CR3: 0000000043720000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
__debug_check_no_obj_freed lib/debugobjects.c:992 [inline]
debug_check_n
Affected
20 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 5.17.3-1 (bookworm) | linux 5.17.3-1 (bookworm) |
| linux | linux | — | — |
| linux | linux | >= ace45bec6d77bc061c3c3d8ad99e298ea9800c2b < 864297ee30727ae6233f80296b7fc91442620b05 | 864297ee30727ae6233f80296b7fc91442620b05 |
| linux | linux | >= ace45bec6d77bc061c3c3d8ad99e298ea9800c2b < 7ee84d29f22de6f6c63fad6c54690517659862f1 | 7ee84d29f22de6f6c63fad6c54690517659862f1 |
| linux | linux | >= ace45bec6d77bc061c3c3d8ad99e298ea9800c2b < 08ff0e74fab517dbc44e11b8bc683dd4ecc65950 | 08ff0e74fab517dbc44e11b8bc683dd4ecc65950 |
| linux | linux | >= ace45bec6d77bc061c3c3d8ad99e298ea9800c2b < 571d8e1d154ca18f08dcb72b69318d36e10010a0 | 571d8e1d154ca18f08dcb72b69318d36e10010a0 |
| linux | linux | >= ace45bec6d77bc061c3c3d8ad99e298ea9800c2b < 41024a40f6c793abbb916a857f18fb009f07464c | 41024a40f6c793abbb916a857f18fb009f07464c |
| linux | linux | >= ace45bec6d77bc061c3c3d8ad99e298ea9800c2b < cd8aef1f30d1215648e4e6686cfb422004851429 | cd8aef1f30d1215648e4e6686cfb422004851429 |
| linux | linux | >= ace45bec6d77bc061c3c3d8ad99e298ea9800c2b < 1946014ca3b19be9e485e780e862c375c6f98bad | 1946014ca3b19be9e485e780e862c375c6f98bad |
| linux | linux_kernel | — | — |
| linux | linux_kernel | >= 0 < 5.10.113-1 | 5.10.113-1 |
| linux | linux_kernel | >= 0 < 5.17.3-1 | 5.17.3-1 |
| linux | linux_kernel | >= 0 < 5.17.3-1 | 5.17.3-1 |
| linux | linux_kernel | >= 0 < 5.17.3-1 | 5.17.3-1 |
| linux | linux_kernel | >= 4.17 < 4.19.238 | 4.19.238 |
| linux | linux_kernel | >= 4.20 < 5.4.189 | 5.4.189 |
| linux | linux_kernel | >= 5.11 < 5.15.34 | 5.15.34 |
| linux | linux_kernel | >= 5.16 < 5.16.20 | 5.16.20 |
| linux | linux_kernel | >= 5.17 < 5.17.3 | 5.17.3 |
| linux | linux_kernel | >= 5.5 < 5.10.111 | 5.10.111 |
CVSS provenance
nvdv3.17.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
osv7.8HIGH
vendor_debian7.8HIGH
vendor_redhat7.8HIGH
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Red Hat
kernel: rxrpc: fix a race in rxrpc_exit_net()
vendor_redhat·2025-02-26·CVSS 7.8
CVE-2022-49087 [HIGH] kernel: rxrpc: fix a race in rxrpc_exit_net()
kernel: rxrpc: fix a race in rxrpc_exit_net()
In the Linux kernel, the following vulnerability has been resolved:
rxrpc: fix a race in rxrpc_exit_net()
Current code can lead to the following race:
CPU0 CPU1
rxrpc_exit_net()
rxrpc_peer_keepalive_worker()
if (rxnet->live)
rxnet->live = false;
del_timer_sync(&rxnet->peer_keepalive_timer);
timer_reduce(&rxnet->peer_keepalive_timer, jiffies + delay);
cancel_work_sync(&rxnet->peer_keepalive_work);
rxrpc_exit_net() exits while peer_keepalive_timer is still armed,
leading to use-after-free.
syzbot report was:
ODEBUG: free active (active state 0) object type: timer_list hint: rxrpc_peer_keepalive_timeout+0x0/0xb0
WARNING: CPU: 0 PID: 3660 at lib/debugobjects.c:505 debug_print_object+0x16e/0x250 lib/debugobjects.c:505
Modules linked in:
CPU: 0 PID:
Debian
CVE-2022-49087: linux - In the Linux kernel, the following vulnerability has been resolved: rxrpc: fix ...
vendor_debian·2022·CVSS 7.8
CVE-2022-49087 [HIGH] CVE-2022-49087: linux - In the Linux kernel, the following vulnerability has been resolved: rxrpc: fix ...
In the Linux kernel, the following vulnerability has been resolved: rxrpc: fix a race in rxrpc_exit_net() Current code can lead to the following race: CPU0 CPU1 rxrpc_exit_net() rxrpc_peer_keepalive_worker() if (rxnet->live) rxnet->live = false; del_timer_sync(&rxnet->peer_keepalive_timer); timer_reduce(&rxnet->peer_keepalive_timer, jiffies + delay); cancel_work_sync(&rxnet->peer_keepalive_work); rxrpc_exit_net() exits while peer_keepalive_timer is still armed, leading to use-after-free. syzbot report was: ODEBUG: free active (active state 0) object type: timer_list hint: rxrpc_peer_keepalive_timeout+0x0/0xb0 WARNING: CPU: 0 PID: 3660 at lib/debugobjects.c:505 debug_print_object+0x16e/0x250 lib/debugobjects.c:505 Modules linked in: CPU: 0 PID: 3660 Comm: kworker/u4:6 Not tainted 5.17.0-syz
GHSA
GHSA-vhw3-82w5-42p7: In the Linux kernel, the following vulnerability has been resolved:
rxrpc: fix a race in rxrpc_exit_net()
Current code can lead to the following rac
ghsa_unreviewed·2025-02-27
CVE-2022-49087 [HIGH] CWE-416 GHSA-vhw3-82w5-42p7: In the Linux kernel, the following vulnerability has been resolved:
rxrpc: fix a race in rxrpc_exit_net()
Current code can lead to the following rac
In the Linux kernel, the following vulnerability has been resolved:
rxrpc: fix a race in rxrpc_exit_net()
Current code can lead to the following race:
CPU0 CPU1
rxrpc_exit_net()
rxrpc_peer_keepalive_worker()
if (rxnet->live)
rxnet->live = false;
del_timer_sync(&rxnet->peer_keepalive_timer);
timer_reduce(&rxnet->peer_keepalive_timer, jiffies + delay);
cancel_work_sync(&rxnet->peer_keepalive_work);
rxrpc_exit_net() exits while peer_keepalive_timer is still armed,
leading to use-after-free.
syzbot report was:
ODEBUG: free active (active state 0) object type: timer_list hint: rxrpc_peer_keepalive_timeout+0x0/0xb0
WARNING: CPU: 0 PID: 3660 at lib/debugobjects.c:505 debug_print_object+0x16e/0x250 lib/debugobjects.c:505
Modules linked in:
CPU: 0 PID: 3660 Comm: kworker/u4:6 Not tainted
OSV
CVE-2022-49087: In the Linux kernel, the following vulnerability has been resolved: rxrpc: fix a race in rxrpc_exit_net() Current code can lead to the following race:
osv·2025-02-26·CVSS 7.8
CVE-2022-49087 [HIGH] CVE-2022-49087: In the Linux kernel, the following vulnerability has been resolved: rxrpc: fix a race in rxrpc_exit_net() Current code can lead to the following race:
In the Linux kernel, the following vulnerability has been resolved: rxrpc: fix a race in rxrpc_exit_net() Current code can lead to the following race: CPU0 CPU1 rxrpc_exit_net() rxrpc_peer_keepalive_worker() if (rxnet->live) rxnet->live = false; del_timer_sync(&rxnet->peer_keepalive_timer); timer_reduce(&rxnet->peer_keepalive_timer, jiffies + delay); cancel_work_sync(&rxnet->peer_keepalive_work); rxrpc_exit_net() exits while peer_keepalive_timer is still armed, leading to use-after-free. syzbot report was: ODEBUG: free active (active state 0) object type: timer_list hint: rxrpc_peer_keepalive_timeout+0x0/0xb0 WARNING: CPU: 0 PID: 3660 at lib/debugobjects.c:505 debug_print_object+0x16e/0x250 lib/debugobjects.c:505 Modules linked in: CPU: 0 PID: 3660 Comm: kworker/u4:6 Not tainted 5.17.0-syz
No detection rules found.
No public exploits indexed.
https://git.kernel.org/stable/c/08ff0e74fab517dbc44e11b8bc683dd4ecc65950https://git.kernel.org/stable/c/1946014ca3b19be9e485e780e862c375c6f98badhttps://git.kernel.org/stable/c/41024a40f6c793abbb916a857f18fb009f07464chttps://git.kernel.org/stable/c/571d8e1d154ca18f08dcb72b69318d36e10010a0https://git.kernel.org/stable/c/7ee84d29f22de6f6c63fad6c54690517659862f1https://git.kernel.org/stable/c/864297ee30727ae6233f80296b7fc91442620b05https://git.kernel.org/stable/c/cd8aef1f30d1215648e4e6686cfb422004851429
2025-02-26
Published